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Hallberg, K and Rincon, Julian and Ramasesha, S (2010) Quantum Properties in Transport Through Nanoscopic Rings:Charge-Spin Separation and Interference Effects. In: 33rd International Workshop on Condensed Matter Theories Quito, AUG 16-22, 2009 , ECUADOR, pp. 5068-5078.
Das, Mousumi and Ramasesha, S (2006) A density matrix renormalization group study of low-lying excitations of polythiophene within a Pariser-Parr-Pople model. In: International Conference on Recent Developments in Metal Oxides and Related Materials,, Jan 09-11, 2006, Bangalore, India, pp. 67-78.
Ramasesha, S and Tandon, Kunj (1999) Symmetrized DMRG method for conjugated polymers. In: Seminar and Workshop on Density-Matrix Renormalization, 1999, Dresden, Germany.
Ramasesha, S and Anusooya, Y and Pati, Swapan K and Tandon, Kunj S (1997) Symmetrized DMRG studies of low-energy electronic states of poly-para-phenylene (PPP) and poly-para-phenylenevinylene (PPV) systems. In: Conference on Optical Probes of Conjugated Polymers, Monday 28 July 1997, San Diego, CA, USA.
Soos, ZG and Mukhopadhyay, D and Ramasesha, S (1996) Model Hamiltonians for nonlinear optical properties of conjugated polymers. In: Symposium on Nonlinear Optical Materials - Theory and Modeling, at the 208th National Meeting of the American-Chemical-Society, AUG 21-25, 1994, WASHINGTON.
Soos, ZG and Ramasesha, S and Galvão, DS and Kepler, RG and Etemad, S (1993) Electronic excitations and alternation of conjugated polymers. In: SYMP ON SYNTHETIC ELECTROACTIVE MATERIALS FOR NONLINEAR OPTICS AND ELECTRONICS, AT THE 1992 SPRING CONF OF THE EUROPEAN MATERIAL RESEARCH SOC, JUN 02-05, 1992, STRASBOURG, FRANCE.
Dey, D and Parvej, A and Das, S and Saha, SK and Kumar, M and Ramasesha, S and Soos, ZG (2023) Density matrix renormalization group (DMRG) for interacting spin chains and ladders. In: Journal of Chemical Sciences, 135 (2).
Dutta, A and Swain, D and Bera, AK and Raghunathan, R and Samal, D and Yusuf, SM and Ramasesha, S and Guru Row, TN (2022) Magnetic structure and properties of the vanthoffite mineral Na6Mn(SO4)4. In: Physical Review B, 106 (9).
Das, S and Dey, D and Ramasesha, S and Kumar, M (2022) Quantum phase transition in skewed ladders: an entanglement entropy and fidelity study. In: European Physical Journal B, 95 (9).
Das, S and Dey, D and Ramasesha, S and Kumar, M (2021) Quantum phases of spin-1 system on 3/4 and 3/5 skewed ladders. In: Journal of Applied Physics, 129 (22).
Haldar, S and Ramasesha, S (2021) Study of magnetization relaxation in molecular spin clusters using an innovative kinetic Monte Carlo method. In: Physical Review B, 103 (21).
Das, S and Dey, D and Kumar, M and Ramasesha, S (2021) Quantum phases of a frustrated spin-1 system: The 5/7 skewed ladder. In: Physical Review B, 104 (12).
Dey, D and Das, S and Kumar, M and Ramasesha, S (2020) Magnetization plateaus of spin- 12 system on a 5/7 skewed ladder. In: Physical Review B, 101 (19).
Haldar, S and Ramasesha, S (2020) Magnetocaloric effect in molecular spin clusters and their assemblies: Exact and Monte Carlo studies using exact cluster eigenstates. In: Journal of Magnetism and Magnetic Materials, 500 .
Haldar, S and Ramasesha, S (2020) Magnetocaloric effect in molecular spin clusters and their assemblies: Exact and Monte Carlo studies using exact cluster eigenstates. In: Journal of Magnetism and Magnetic Materials, 500 .
Valentim, A and Bocan, GA and Fuhr, JD and GarcÃa, DJ and Giri, G and Kumar, M and Ramasesha, S (2020) A simple scheme for finding magnetic aromatic hydrocarbon molecules. In: Physical Chemistry Chemical Physics, 22 (10). pp. 5882-5892.
Giri, Geetanjali and Pati, Y Anusooya and Ramasesha, S (2019) Correlated Electronic States of a Few Polycyclic Aromatic Hydrocarbons: A Computational Study. In: JOURNAL OF PHYSICAL CHEMISTRY A, 123 (25). pp. 5257-5265.
Prodhan, Suryoday and Mazumdar, Sumit and Ramasesha, S (2019) Correlated Electronic Properties of a Graphene Nanoflake: Coronene. In: MOLECULES, 24 (4).
Haldar, Sumit and Raghunathan, Rajamani and Sutter, Jean-Pascal and Ramasesha, S (2018) Modeling molecular magnets with large exchange and on-site anisotropies. In: PHYSICAL REVIEW B, 98 (21).
Giri, Geetanjali and Prodhan, Suryoday and Pati, Y Anusooya and Ramasesha, S (2018) A Model Exact Study of the Properties of Low-Lying Electronic States of Perylene and Substituted Perylenes. In: JOURNAL OF PHYSICAL CHEMISTRY A, 122 (43). pp. 8650-8658.
Ramasesha, S (2018) The prime minister fellowship scheme. In: Current Science, 115 (6). p. 1017.
Prodhan, Suryoday and Ramasesha, S (2018) Symmetrized density matrix renormalization group algorithm for low-lying excited states of conjugated carbon systems: Application to 1,12-benzoperylene and polychrysene. In: PHYSICAL REVIEW B, 97 (19).
Prodhan, Suryoday and Ramasesha, S (2017) Exact wave packet dynamics of singlet fission in unsubstituted and substituted polyene chains within long-range interacting models. In: PHYSICAL REVIEW B, 96 (7).
Haldar, Sumit and Raghunathan, Rajamani and Sutter, Jean-Pascal and Ramasesha, S (2017) Modelling magnetic anisotropy of single-chain magnets in vertical bar d/J vertical bar >= 1 regime. In: MOLECULAR PHYSICS, 115 (21-22,). pp. 2849-2859.
Bar, Arun Kumar and Gogoi, Nayanmoni and Pichon, Celine and Goli, V M L Durga Prasad and Thlijeni, Mehrez and Duhayon, Carine and Suaud, Nicolas and Guihery, Nathalie and Barra, Anne-Laure and Ramasesha, S and Sutter, Jean-Pascal (2017) Pentagonal Bipyramid Fe-II Complexes: Robust Ising-Spin Units towards Heteropolynuclear Nanomagnets. In: CHEMISTRY-A EUROPEAN JOURNAL, 23 (18). pp. 4380-4396.
Giri, Geetanjali and Dey, Dayasindhu and Kumar, Manoranjan and Ramasesha, S and Soos, Zoltan G (2017) Quantum phases of frustrated two-leg spin-1/2 ladders with skewed rungs. In: PHYSICAL REVIEW B, 95 (22).
Patil, Y A and Ramasesha, S (2017) Tuning spin gap in anthracene and tetracene for singlet fission: An exact PPP model study in the VB basis. In: COMPUTATIONAL AND THEORETICAL CHEMISTRY, 1116 (SI). pp. 151-158.
Goli, Durga Prasad VML and Prodhan, Suryoday and Mazumdar, Sumit and Ramasesha, S (2016) Correlated electronic properties of some graphene nanoribbons: A DMRG study. In: PHYSICAL REVIEW B, 94 (3).
Kumar, Manoranjan and Parvej, Aslam and Thomas, Simil and Ramasesha, S and Soos, ZG (2016) Efficient density matrix renormalization group algorithm to study Y junctions with integer and half-integer spin. In: PHYSICAL REVIEW B, 93 (7).
Bar, Arun Kumar and Pichon, Celine and Gogoi, Nayanmoni and Duhayon, Carine and Ramasesha, S and Sutter, Jean-Pascal (2015) Single-ion magnet behaviour of heptacoordinated Fe(II) complexes: on the importance of supramolecular organization. In: CHEMICAL COMMUNICATIONS, 51 (17). pp. 3616-3619.
Pati, Anusooya Y and Ramasesha, S (2014) Exact Solution of the PPP Model for Correlated Electronic States of Tetracene and Substituted Tetracene. In: JOURNAL OF PHYSICAL CHEMISTRY A, 118 (23). pp. 4048-4055.
Zhu, Mei and Hu, Peng and Li, Yungai and Wang, Xiufeng and Li, Licun and Liao, Daizheng and Goli, Durga Prasad VML and Ramasesha, S and Sutter, Jean-Pascal (2014) Hetero-tri-spin 2p-3d-4f] Chain Compounds Based on Nitronyl Nitroxide Lanthanide Metallo-Ligands: Synthesis, Structure, and Magnetic Properties. In: CHEMISTRY-A EUROPEAN JOURNAL, 20 (41). pp. 13356-13365.
Prodhan, Suryoday and Soos, Zoltan G and Ramasesha, S (2014) Model for triplet state engineering in organic light emitting diodes. In: JOURNAL OF CHEMICAL PHYSICS, 140 (21).
Sahoo, Shaon and Goli, Durga Prasad VML and Sen, Diptiman and Ramasesha, S (2014) Studies on a frustrated Heisenberg spin chain with alternating ferromagnetic and antiferromagnetic exchanges. In: JOURNAL OF PHYSICS-CONDENSED MATTER, 26 (27).
Thomas, Simil and Pati, YA and Ramasesha, S (2013) Linear and nonlinear optical properties of expanded porphyrins: a DMRG study. In: Journal of Physical Chemistry A, 117 (33). pp. 7804-7809.
Paudel, K and Moghe, D and Chandrasekhar, M and Yu, P and Ramasesha, S and Scherf, U and Guha, S (2013) Pressure dependence of singlet and triplet excitons in amorphous polymer semiconductors. In: EPL, 104 (2).
Kumar, Manoranjan and Ramasesha, S and Soos, Zoltan G (2013) Quantum Phase Diagram of One-Dimensional Spin and Hubbard Models with Transitions to Bond Order Wave Phases. In: CROATICA CHEMICA ACTA, 86 (4). pp. 407-417.
Kumar, Manoranjan and Ramasesha, S and Soos, Zoltan G (2013) Quantum Phase Diagram of One-Dimensional Spin and Hubbard Models with Transitions to Bond Order Wave Phases. In: CROATICA CHEMICA ACTA, 86 (4). pp. 407-417.
Goli, Durga Prasad VML and Sahoo, Shaon and Ramasesha, S and Sen, Diptiman (2013) Quantum phases of dimerized and frustrated Heisenberg spin chains with s=1/2, 1 and 3/2: an entanglement entropy and fidelity study. In: Journal of Physics: Condensed Matter, 25 (12). 125603_1-125603_11.
Ramasesha, S and Mukhopadhyay, S and Pandey, Ravindra and Das, Puspendu K and Zyss, Joseph (2012) Influence of anion on the quadratic nonlinearity and depolarization ratios of scattered second harmonic light from cation-pi complexes. In: JOURNAL OF CHEMICAL PHYSICS, 136 (19).
Kumar, Manoranjan and Ramasesha, S and Soos, Zoltan G (2012) Density matrix renormalization group algorithm for Bethe lattices of spin-1/2 or spin-1 sites with Heisenberg antiferromagnetic exchange. In: Physical Review B, 85 (13).
Sahoo, Shaon and Goli, Durga Prasad VML and Ramasesha, S and Sen, Diptiman (2012) Exact entanglement studies of strongly correlated systems: role of long-range interactions and symmetries of the system. In: Journal of Physics: Condensed Matter, 24 (11).
Sahoo, Shaon and Ramasesha, S (2012) Full spin and spatial symmetry adapted technique for correlated electronic hamiltonians: Application to an icosahedral cluster. In: International Journal of Quantum Chemistry, 112 (4). pp. 1041-1054.
Dutta, Tirthankar and Ramasesha, S (2012) Real-time density matrix renormalization group dynamics of spin and charge transport in push-pull polyenes and related systems. In: Physical Review B: Condensed Matter and Materials Physics, 85 (3).
Kumar, Manoranjan and Pati, Anusooya Y and Ramasesha, S (2012) A density matrix renormalization group method study of optical properties of porphines and metalloporphines. In: Journal of Chemical Physics, The, 136 (1).
Thomas, Simil and Ramasesha, S and Hallberg, Karen and Garcia, Daniel (2012) Fused azulenes as possible organic multiferroics. In: PHYSICAL REVIEW B, 86 (18).
Sahoo, Shaon and Sutter, Jean-Pascal and Ramasesha, S (2012) Study of Low Temperature Magnetic Properties of a Single Chain Magnet with Alternate Isotropic and Non-collinear Anisotropic Units. In: Journal of Statistical Physics, 147 (1). pp. 181-193.
Dutta, Tirthankar and Ramasesha, S (2011) Effect of dimerization on dynamics of spin-charge separation in Pariser-Parr-Pople model: A time-dependent density matrix renormalization group study. In: Physical Review B: Condensed Matter and Materials Physics, 84 (23).
Pandey, Ravindra and Mukhopadhyay, S and Ramasesha, S and Das, Puspendu K (2011) Structure of the Pyridine-Chloranil Complex in Solution: A Surprise from Depolarized Hyper-Rayleigh Scattering Measurements. In: Journal of Physical Chemistry B, 115 (47). pp. 13842-13846.
Thomas, Simil and Pati, YA and Ramasesha, S (2011) Nonlinear Optical Properties of Stacked Conjugated Systems. In: Crystal Growth & Design, 11 (5). pp. 1846-1854.
Pandey, Ravindra and Ghosh, Sampa and Mukhopadhyay, S and Ramasesha, S and Das, Puspendu K (2011) Geometry and quadratic nonlinearity of charge transfer complexes in solution using depolarized hyper-Rayleigh scattering. In: Journal of Chemical Physics, 134 (4). 044533.
Mukhopadhyay, S and Pandey, Ravindra and Das, Puspendu K and Ramasesha, S (2011) Geometry and quadratic nonlinearity of charge transfer complexes in solution: A theoretical study. In: Journal of Chemical Physics, 134 (4).
Kumar, Manoranjan and Sarkar, Sujit and Ramasesha, S (2011) Supersolid Phase in One-Dimensional Bose-Hubbard Model With Extended Range Interactions: DMRG And Field Theoretic Study at Different Densities. In: International Journal of Modern Physics B, 25 (1). pp. 159-169.
Hallberg, K and Rincon, Julian and Nizama, M and Aligia, AA and Ramasesha, S (2010) Correlations, quantum entanglement and interference in nanoscopic systems. In: Journal of Statistical Mechanics: Theory and Experiment .
Dutta, Tirthankar and Ramasesha, S (2010) Double time window targeting technique: Real-time DMRG dynamics in the Pariser-Parr-Pople model. In: Physical Review B: Condensed Matter and Materials Physics, 82 (3).
Venkatakrishnan, TS and Sahoo, S and Brefuel, N and Duhayon, C and Paulsen, C and Barra, AL and Ramasesha, S and Sutter, JP (2010) Enhanced Ion Anisotropy by Nonconventional Coordination Geometry: Single-Chain Magnet Behavior for a [{(FeL)-L-II}(2){Nb-IV(CN)(8)}] Helical Chain Compound Designed with Heptacoordinate Fe-II. In: Journal of the American Chemical Society, 132 (17). pp. 6047-6056.
Venkatakrishnan, TS and Sahoo, S and Brefuel, N and Duhayon, C and Paulsen, C and Barra, AL and Ramasesha, S and Sutter, JP (2010) Enhanced Ion Anisotropy by Nonconventional Coordination Geometry: Single-Chain Magnet Behavior for a [{(FeL)-L-II}(2){Nb-IV(CN)(8)}] Helical Chain Compound Designed with Heptacoordinate Fe-II. In: Journal of the American Chemical Society, 132 (17). pp. 6047-6056.
Mukhopadhyay, S and Kanth, Raja Bhaskar and Ramasesha, S and Patil, Satish (2010) Synthesis and Characterization of a Class of Donor-Acceptor Conjugated Molecules: Experiments and Theoretical Calculations. In: Journal of Physical Chemistry A, The, 114 (13). pp. 4647-4654.
Kumar, Manoranjan and Soos, Zoltan G and Sen, Diptiman and Ramasesha, S (2010) Modified density matrix renormalization group algorithm for the zigzag spin-1/2 chain with frustrated antiferromagnetic exchange: Comparison with field theory at large J(2)/J(1). In: Physical Review B: Condensed Matter and Materials Physics, 81 (10).
Kumar, Manoranjan and Ramasesha, S and Soos, ZG (2010) Bond-order wave phase, spin solitons, and thermodynamics of a frustrated linear spin-1/2 Heisenberg antiferromagnet. In: Physical Review B, 81 (5).
Mukhopadhyay, S and Ramasesha, S and Guha, S (2010) Role of the triplet state in the green emission peak of polyfluorene films: A time evolution study. In: Journal of Chemical Physics, 132 (4).
Kumar, Manoranjan and Ramasesha, S (2010) Low-lying states of transverse substituted trans-polyacetylene and trans-polyacetylene: A comparative DMRG study. In: Physical Review B: Condensed Matter and Materials Physics, 81 (3).
Rincon, Julian and Hallberg, K and Aligia, AA and Ramasesha, S (2009) Quantum Interference in Coherent Molecular Conductance. In: Physical review letters, 103 (26).
Kumari, M and Sarkar, S and Ramasesha, S (2009) Quantum phase analysis of 1D superconducting quantum dot lattice using extended Bose-Hubbard model. In: The European Physical Journal B - Condensed Matter and Complex Systems, 72 (4). pp. 503-507.
Ramasesha, S and Sahoo, Shaon and Raghunathan, Rajamani and Sen, Diptiman (2009) Computing magnetic anisotropy constants of single molecule magnets. In: Proceedings of the Indian Academy of Sciences - Chemical Sciences, 121 (5). pp. 823-837.
Arif, M and Mukhopadhyay, S and Ramasesha, S and Guha, S (2009) The role of triplet states in the emission mechanism of polymer light-emitting diodes. In: EPL, 87 (5). 57008-p1.
Mukhopadhyay, S and Ramasesha, S (2009) Study of linear and nonlinear optical properties of dendrimers using density matrix renormalization group method. In: Journal of Chemical Physics, 131 (7).
Kumar, Manoranjan and Ramasesha, S and Soos, ZG (2009) Tuning the bond-order wave phase in the half-filled extended Hubbard model. In: Physical Review B, 79 (3). 035102-1-8.
Dhers, Sebastien and Sahoo, Shaon and Costes, Jean-Pierre and Duhayon, Carine and Ramasesha, S and Sutter, Jean-Pascal (2009) 1-D hydrogen-bonded organization of hexanuclear {3d-4f-5d} complexes: evidence for slow relaxation of the magnetization for [{LMe2Ni(H2O)Ln(H2O)4.5}2{W(CN)8}2] with Ln = Tb and Dy. In: CrystEngComm, 11 (10). pp. 2078-2083.
Mahata, Partha and Raghunathan, Rajamani and Banerjee, Debamalya and Sen, Diptiman and Ramasesha, S and Bhat, SV and Natarajan, Srinivasan (2009) Fluorite and Mixed-Metal Kagome-Related Topologies in Metal-Organic Framework Compounds: Synthesis, Structure, and Properties. In: Chemistry-an asian journal, 4 (6). pp. 936-947.
Kumar, Manoranjan and Ramasesha, S and Pascal, RA and Soos, ZG (2008) Dimerization transition of alkali-TCNQ salts: Charge degrees of freedom near the CDW boundary. In: Europhysics Letters, 83 (3). pp. 37001-1.
Mukhopadhyay, S and Topham, BJ and Soos, ZG and Ramasesha, S (2008) Neutral and Charged Excited States in Polar Organic Films: Origin of Unusual Electroluminescence in Tri-p-tolylamine-Based Hole Conductors. In: Journal of Physical Chemistry A, 112 (31). pp. 7271-7279.
Raghunathan, Rajamani and Ramasesha, S and Mathoniere, Corine and Marvaud, Valerie (2008) A kinetic model for photoswitching of magnetism in the high spin molecule $[Mo(IV)(CN)_2(CN Cu(II)(tren))_6](ClO_4)_8$. In: Physical Chemistry Chemical Physics, 10 (35). pp. 5469-5474.
Soos, ZG and Mukhopadhyay, S and Ramasesha, S (2007) Polar organic films: Transport gap, charge–dipole interaction and electroluminescence of tritolylamine (TTA) derivatives. In: Chemical Physics Letters, 442 (4-6). pp. 285-288.
Kumar, Manoranjan and Ramasesha, S and Sen, Diptiman and Soos, ZG (2007) Scaling exponents in spin-$^{(1/2)}$ Heisenberg chains with dimerization and frustration studied with the density-matrix renormalization group. In: Physical Review B, 75 (5). 052404:1-4.
Venkatakrishnan, Thengarai S and Rajamani, Raghunathan and Ramasesha, S and Sutter, Jean-Pascal (2007) Synthesis, Crystal Structure, and Magnetic Properties of Hexanuclear $[\{MnL_2\}_4\{Nb(CN)_8\}_2]$ and Nonanuclear $[\{MnL_2\}_6\{Nb(CN)_8\}_3]$ Heterometallic Clusters (L = bpy, phen). In: Inorganic Chemistry, 46 (23). pp. 9569-9574.
Ramasesha, S and Raghunathan, R and Ducasse, L and Sutter, JP and Mathonieere, C (2006) Microscopic model for superexchange interactions and photomagnetism in binuclear transition metal complexes. In: Phase Transitions, 79 (8). 637- 654.
Yan, Y and Mazumdar, S and Ramasesha, S (2006) Dimerization-induced enhancement of the spin gap in the quarter-filled two-leg rectangular ladder. In: Physical Review B, 73 (22). pp. 4418-4424.
Raghunathan, Rajamani and Sutter, Jean Pascal and Ducasse, Laurent and Desplanches, Cédric and Ramasesha, S (2006) Microscopic model for high-spin versus low-spin ground state in $[Ni_2M(CN)_8](M=Mo^V,W^V,Nb^I^V)$ magnetic clusters. In: Physical Review B: Condensed Matter and Materials Physics, 73 (10). 104438-1-104438-8.
Fritsch, A and Ducasse, L and Castet, F and Ramasesha, S (2005) Charge transport in DNA strands using fragment orbital theory. In: Synthetic Metals, 155 (2). pp. 418-421.
Das, Mousumi and Ramasesha, S and Mazumdar, S (2005) Role of electron-electron interactions on spin effects in electron-hole recombination in organic light emitting diodes. In: Synthetic Metals, 155 (2). pp. 270-273.
Murugan, Arul N and Rao, RS and Yashonath, S and Ramasesha, S and Godwal, BK (2005) High-Pressure Study of Adamantane: Variable Shape Simulations up to 26 GPa. In: Journal of Physical Chemistry B, 109 (36). pp. 17293-17303.
Jha, Prakash Chandra and Pati, Anusooya Y and Ramasesha, S (2005) Nonlinear optical properties of stilbene and azobenzene derivatives containing azaphosphane groups. In: Molecular Physics, 103 (14). pp. 1859-1873.
Chandra, Ravi V and Ramasesha, S and Sen, Diptiman (2004) Magnetic properties of a helical spin chain with alternating isotropic and anisotropic spins: Magnetization plateaus and finite entropy. In: Physical Review B: Condensed Matter and Materials Physics, 70 (14). 144404/1-144404/8.
Jha, Prakash Chandra and Das, Mousumi and Ramasesha, S (2004) Two-Photon Absorption Cross Sections of trans-Stilbene, and 7,8-Disubstituted Stilbenes in Different Molecular Conformations: A Model Exact Study. In: Journal of Physical Chemistry A, 108 (30). pp. 6279-6285.
Murugan, Arul N and Chandra, Prakash Jha and Yashonath, S and Ramasesha, S (2004) High Pressure Phase of Biphenyl at Room Temperature: A Monte Carlo Study. In: Journal of Physical Chemistry B, 108 (13). pp. 4178-4184.
Ramasesha, S and Mazumdar, S and Tandon, Kunj and Das, Mousumi (2003) Electron correlation effects in electron–hole recombination and triplet–triplet scattering in organic light emitting diodes. In: Synthetic Metals, 139 (3). pp. 917-920.
Raghu, C and Pati, Anusooya Y and Ramasesha, S (2003) density matrix renormalization group study of polyacene. In: Synthetic Metals, 137 (1-3). pp. 1073-1074.
Rao, CNR and Paul, Geo and Choudhury, Amitava and Sampathkumaran, EV and Raychaudhuri, Arup K and Ramasesha, S and Rudra, Indranil (2003) Properties of a mixed-valent iron compound with the kagome lattice. In: Physical Review B (Condensed Matter and Materials Physics ), 67 . pp. 134425-1.
Tandon, Kunj and Ramasesha, S and Mazumdar, S (2003) Electron correlation effects in electron-hole recombination in organic light-emitting diodes. In: Physical Review B (Condensed Matter and Materials Physics), 67 . 045109-1-19.
Jha, Prakash Chandra and Krishnan, Anu and Das, Puspendu K and Ramasesha, S (2002) Nonlinear optical properties of linear chain phosphazenes, (PN)x. In: Journal of Chemical Physics, 117 (6). pp. 2873-2881.
Raghu, C and Pati, Anusooya Y and Ramasesha, S (2002) Density-matrix renormalization-group study of low-lying excitations of polyacene within a Pariser-Parr-Pople model. In: Physical Review B: Condensed Matter and Materials Physics, 66 (3). 035116.
Rudra, Indranil and Ramasesha, S and Sen, Diptiman (2002) Model exact low-lying states and spin dynamics in ferric wheels: Fe-6 to Fe-12. In: Physical Review B: Condensed Matter and Materials Physics, 66 (1). 014441-9.
Rudra, I and Raghu, C and Ramasesha, S (2002) Exchange interaction in binuclear complexes with rare-earth and copper ions: A many-body model study. In: Physical Review, 65 (224411).
Raghu, C and Pati, Anusooya Y and Ramasesha, S (2002) Structural and electronic instabilities in polyacenes: Density-matrix renormalization group study of a long-range interacting model. In: Physical Review B, 65 (15). 155204-1-155204-9.
Chakrabarti, Aparna and Ramasesha, S (2002) Properties of the low-lying electronic states of phenanthrene: Exact PPP results. In: International Journal of Quantum Chemistry, 60 (1). pp. 381-391.
Rudra, Indranil and Ramasesha, S and Sen, Diptiman (2001) An alternate model for magnetization plateaus in the molecular magnet $V_{15}$. In: Journal of Physics:Condensed Matter, 13 (50). 11717 -11725.
Raghu, C and Rudra, Indranil and Sen, Diptiman and Ramasesha, S (2001) Quantum phenomena in magnetic nano clusters. In: Proceedings of the Indian Academy of Sciences - Chemical Sciences, 113 (5-6). pp. 459-486.
Raghu, C and Rudra, Indranil and Sen, Diptiman and Ramasesha, S (2001) Properties of low-lying states in some high-nuclearity Mn, Fe, and V clusters: Exact studies of Heisenberg models. In: Physical Review B, 6406 (6).
Rudra, Indranil and Ramasesha, S and Sen, Diptiman (2001) Magnetization of $Mn_{12}$ acetate in a slowly varying magnetic field: A quantum mechanical study. In: Physical Review B, 6401 (1). 64 014408-64 014408.
Wohlgenannt, M and Tandon, Kunj and Mazumdar, S and Ramasesha, S and Vardeny, ZV (2001) Formation cross-sections of singlet and triplet excitons in pi-conjugated polymers. In: Nature, 409 (6819). pp. 494-497.
Raghu, C and Rudra, Indranil and Ramasesha, S and Sen, Diptiman (2000) Evaluation of low-energy effective Hamiltonian techniques for coupled spin triangles. In: Physical Review B, 62 (14). pp. 9484-9492.
Pati, Swapan K and Ramasesha, S and Shuai, Z and Bredas, JL (1999) Dynamical nonlinear optical coefficients from the symmetrized density-matrix renormalization-group method. In: Physical Review B, 59 (23). pp. 14827-14830.
Mazumdar, S and Ramasesha, S and Clay, RT and Campbell, David K (1999) Theory of coexisting charge and spin-density waves in (TMTTF)(2)Br, (TMTSF)(2)PF6 and alpha-(BEDT-TTF)(2)MHg(SCN)(4). In: Synthetic Metals, 103 (1-3). pp. 1843-1844.
Anusooya, Y and Pati, Swapan K and Ramasesha, S (1999) Density-matrix renormalization group studies of metal-halogen chains within a two-band extended Peierls-Hubbard model. In: Journal Of Physics-Condensed Matter, 11 (11). pp. 2395-2412.
Mazumdar, Sumit and Campbell, David and Clay, RT and Ramasesha, S (1999) Comment on "Wigner Crystal Type of Charge Ordering in an Organic Conductor with a Quarter-Filled Band: $(DI-DCNQI)_{2}Ag$". In: Physical Review Letters, 82 (11). p. 2411.
Mazumdar, S and Ramasesha, S and Clay, Torsten R and Campbell, David K (1999) Theory of coexisting charge and spin-density waves in (TMTTF)(2)Br, (TMTSF)(2)PF6, and alpha-(BEDT-TTF)(2)MHg(SCN)(4). In: Physical Review Letters, 82 (7). 1522-1525 .
Tandon, Kunj and Lal, Siddhartha and Pati, Swapan K and Ramasesha, S and Sen, Diptiman (1999) Magnetization properties of some quantum spin ladders. In: Physical Review B: Condensed Matter, 59 (1). pp. 396-410.
Shuai, Z and Brédas, JL and Pati, SK and Ramasesha, S (1998) Exciton binding energy in the strong correlation limit of conjugated chains. In: Physical Review B, 58 (23). pp. 15329-15332.
Anusooya, Y and Chakrabarti, Aparna and Pati, Swapan K and Ramasesha, S (1998) Ring Currents in Condensed Ring Systems. In: International Journal of Quantum Chemistry, 70 (3). pp. 503-513.
Srinivasan, Bhargavi and Kahna, Oliver and Ramasesha, S (1998) Spin populations in one-dimensional alternant spin systems: A theoretical approach. In: Journal of Chemical Physics, 109 (14). pp. 5770-5777.
Srinivasan, Bhargavi and Ramasesha, S (1998) Structural instability in polyacene: A projector quantum Monte Carlo study. In: Physical Review B, 57 (15). pp. 8927-8933.
Shuai, Z and Bredas, JL and Pati, SK and Ramasesha, S (1997) Quantum-confinement effects on the ordering of the lowest-lying excited states in conjugated chains. In: Physical Review B: Condensed Matter, 56 (15). pp. 9298-9301.
Pati, Swapan K and Ramasesha, S and Sen, Diptiman (1997) A density matrix renormalization group study of low-energy excitations and low-temperature properties of alternating spin systems. In: Journal Of Physics-Condensed Matter, 9 (41). pp. 8707-8726.
Kahn, O and Mathoniere, C and Srinivasan, B and Gillon, B and Baron, V and Grand, A and Ohrstrom, L and Ramasesha, S (1997) Spin distributions in antiferromagnetically coupled Mn2+Cu2+ systems: from the pair to the infinite chain. In: New Journal of Chemistry, 21 (10). 1037-1045 .
Srinivasan, Bhargavi and Ramasesha, S and Krishnamurthy, HR (1997) Estimation of properties of low-lying excited states of Hubbard models: A multiconfigurational symmetrized projector quantum Monte Carlo approach. In: Physical Review B, 56 (11). pp. 6542-6554.
Shuai, Z and Pati, Swapan K and Su, WP and Bredas, JL and Ramasesha, S (1997) Binding energy of $1B_u$ singlet excitons in the one-dimensional extended Hubbard-Peierls model. In: Physical Review B, 55 (23). pp. 15368-15371.
Anusooya, Y and Pati, Swapan K and Ramasesha, S (1997) Symmetrized density matrix renormalization group studies of the properties of low-lying states of the poly-para- phenylene system. In: Journal of Chemical Physics, 106 (24). pp. 10230-10237.
Shuai, S and Patil, S K and Bredas, J L and Ramasesha, S (1997) DMRG studies of the 1B exciton binding energy and 1B/2A crossover in an extended Hubbard-Peierls model. In: Synthetic Metals, 85 (1-3). pp. 336-341.
Pati, Swapan and Chitra, R and Sen, Diptiman and Ramasesha, S and Krishnamurthy, HR (1997) A comparative study of the phase diagrams of spin-1/2 and spin-1 antiferromagnetic chains with dimerization and frustration. In: Journal of Physics: Condensed Matter, 9 (1). pp. 219-230.
Ray, Paresh Chandra and Das, Puspendu Kumar and Ramasesha, S (1996) A comparative study of first hyperpolarizabilities of the acidic and basic forms of weak organic acids in water. In: The Journal of Chemical Physics, 105 (21). pp. 9633-9639.
Chakrabarti, Aparna and Anusooya, Y and Ramasesha, S (1996) Properties of the correlated electronic states of pyrene and hydrogenated pyrene. In: Molecular Physics, 89 (04). pp. 1019-1032.
Ramasesha, S and Pati, Swapan K and Krishnamurthy, HR and Shuai, Z and Bredas, JL (1996) Symmetrized density-matrix renormalization-group method for excited states of Hubbard models. In: Physical Review B, 54 (11). pp. 7598-7601.
Srinivasan, Bhargavi and Ramasesha, S and Krishnamurthy, HR (1996) Multiconfigurational symmetrized-projector quantum Monte Carlo method for low-lying excited states of the Hubbard model. In: Physical Review B, 54 (4). R2276-R2279.
Srinivasan, Bhargavi and Ramasesha, S and Krishnamurthy, HR (1996) Symmetrized projector quantum Monte Carlo studies of the ground state of $C_{60}$. In: Physical Review B, 54 (3). pp. 1692-1702.
Srinivasan, Bhargavi and Ramasesha, S and Krishnamurthy, HR (1996) Variational Monte Carlo and Configuration Interaction Studies of $C_{60}$ and Its Fragments. In: Journal of Physical Chemistry, 100 (27). pp. 11260-11269.
Pai, Ramesh V and Pandit, Rahul and Krishnamurthy, HR and Ramasesha, S (1996) One-Dimensional Disordered Bosonic Hubbard Model: A Density-Matrix Renormalization Group Study. In: Physical Review Letters, 76 (16). 2937 -2940.
Pati, S and Chitra, R and Sen, D and Krishnamurthy, HR and Ramasesha, S (1996) Phase diagram of the spin-one Heisenberg system with dimerization and frustration. In: Europhysics Letters, 33 (9). pp. 707-712.
Chakrabarti, Aparna and Anusooya, Y and Ramasesha, S (1996) Correlated electronic states of C-60 fragments. In: Journal of Molecular Structure (Theochem), 361 (1-3). 181-190 .
Mandal, Pravat Kumar and Manoharan, PT and Sinha, Bhabadyuti and Ramasesha, S (1996) Diagrammatic valence bond studies on hemocyanin. In: Theoretica Chimica Acta, 93 (1). 1-16 .
Chitra, R and Pati, Swapan and Krishnamurthy, HR and Sen, Diptiman and Ramasesha, S (1995) Density-matrix renormalization-group studies of the spin-1/2 Heisenberg system with dimerization and frustration. In: Physical Review B: Condensed Matter, 52 (9). pp. 6581-6587.
Srinivasan, B and Ramasesha, S (1995) A New Mechanism For Ferromagnetism In C-60-TDAE. In: Fullerene Science And Technology, 3 (6). pp. 747-754.
Ramasesha, S and Sinha, B and Albert, IDL (1994) Nature of exchange interactions in stacked radicals/radical-ions of cyclic polyenes. In: Journal of Molecular Structure, 327 (2-3). pp. 173-180.
Anusooya, Y and Ramasesha, S (1994) Lattice embedding and equilibrium geometry of metal-halogen chains in the two-band extended Hubbard model. In: Proceedings of the Indian Academy of Sciences - Chemical Sciences, 106 (2). pp. 433-443.
Sinha, Bhabadyuti and Ramasesha, S (1993) Direct versus kinetic exchange in multiband models for organic ferromagnetism. In: Physical Review B: Condensed Matter, 48 (22). pp. 16410-16416.
Soos, ZG and Ramasesha, S and Galvão, DS (1993) Band to correlated crossover in alternating Hubbard and Pariser-Parr-Pople chains: Nature of the lowest singlet excitation of conjugated polymers. In: Physical Review Letters, 71 (10). pp. 1609-1612.
Nimkar, Seva and Sarma, DD and Krishnamurthy, HR and Ramasesha, S (1993) Mean-field results of the multiple-band extended Hubbard model for the square-planar CuO2 lattice. In: Physical Review B: Condensed Matter, 48 (10). pp. 7355-7363.
Albert, IDL and Das, PK and Ramasesha, S (1993) Optical nonlinearities in symmetric cyanine dyes and related systems. In: Journal of the Optical Society of America B, 10 (8). pp. 1365-1371.
Ramasesha, S and Galvao, DS and Soos, ZG (1993) Exact eigenstates of the Pariser-Parr-Pople model for anthracene. In: Journal of Physical Chemistry, 97 (12). pp. 2823-2829.
Ramasesha, S and Soos, ZG (1993) Symmetry adaptation of correlated states in the valence bond basis. In: Journal of Chemical Physics, The, 98 (5). pp. 4015-4022.
Seshadri, Ram and Rastogi, A and Bhat, SV and Ramasesha, S and Rao, CNR (1993) Molecular ferromagnetism in C60·TDAE. In: Solid State Communications, 85 (11). pp. 971-974.
Galvão, DS and Soos, ZG and Ramasesha, S and Etemad, S (1993) A parametric method 3 (PM3) study of trans‐stilbene. In: Journal of Chemical Physics, 98 (4). pp. 3016-3021.
Chakrabarti, Aparna and Albert, IDL and Ramasesha, S and Lalitha, S and Chandrasekhar, Jayaraman (1993) Is tetramethyleneethane a ground state triplet? In: Proceedings of the Indian Academy of Sciences - Chemical Sciences, 105 (1). pp. 53-62.
Soos, ZG and Ramasesha, S and Galvão, DS and Etemad, S (1993) Excitation and relaxation energies of trans-stilbene: Confined singlet, triplet, and charged bipolarons. In: Physical Review B: Condensed Matter, 47 (4). pp. 1742-1753.
Albert, IDL and Pugh, D and Morley, JO and Ramasesha, S (1992) Linear and nonlinear optical properties of cumulenes and polyenynes: a model exact study. In: Journal of Physical Chemistry, 96 (25). pp. 10160-10165.
Ramasesha, S and Albert, IDL (1992) A comparative theoretical study of higher harmonic generation and electro-optic effects in polyene systems. In: Chemical Physics Letters, 196 (3-4). pp. 287-293.
Soos, ZG and Etemad, S and Galvao, DS and Ramasesha, S (1992) Fluorescence and topological gap of conjugated phenylene polymers. In: Chemical Physics Letters, 194 (4-6). pp. 341-346.
Sarma, DD and Krishnamurthy, HR and Nimkar, S and Ramasesha, S and Mitra, PP and Ramakrishnan, TV (1992) Electronic structure of high-$T_c$ superconductors and related compounds. In: Pramana, Journal of Physics, 38 (5). pp. 531-538.
Mandal, Pravat K and Sinha, Bhabadyuti and Manoharan, PT and Ramasesha, S (1992) Theoretical studies of the spin states of macrocyclic aza-amido binuclear copper (II) complexes. In: Chemical Physics Letters, 191 (5). pp. 448-454.
Srinivasan, Bhargavi and Ramasesha, S (1992) Approximate VB-MO schemes for excitation gaps in Hubbard models. In: Solid State Communications, 81 (10). pp. 831-835.
Ramasesha, S and Rao, CNR (1991) Dependence of the polarizability of the $Cu_4O_8$ cluster on the doping, the weight of the oxygen-hole state, and the excitation gaps in the three-band Hubbard model. In: Physical Review B, 44 (13). pp. 7046-7050.
Albert, IDL and Ramasesha, S (1991) Role of $\sigma-\pi$ interactions on linear and nonlinear susceptibilities in polyenes. In: Chemical Physics Letters, 182 (3-4). pp. 351-356.
Sinha, Bhabadyuti and Ramasesha, S (1991) A theoretical study of spin excitations in [ 2,2 ] -paracyclophane skeleton substituted with two dicarbene units. In: Chemical Physics Letters, 182 (2). pp. 180-186.
Ramasesha, S and Sinha, Bhabadyuti (1991) Theoretical study of spin interactions in stacked acetylene radical ions. In: Chemical Physics Letter, 179 (4). pp. 379-384.
Rao, CNR and Ramasesha, S and Sarma , DD and Santra, AK (1991) Dominant role of the Cu---O charge-transfer energy, electronic polarizability and associated factors in the superconductivity of cuprates. In: Solid State Communications, 77 (9). pp. 709-711.
Albert, IDL and Ramasesha, S and Das, PK (1991) Properties of some low-lying electronic states in polymethineimines and poly(2,3-diazabutadienes). In: Physical Review B, 43 (9). pp. 7013-7019.
Ramasesha, S and Albert, IDL and Sinha, Bhabadyuti (1991) Optical and magnetic properties of the exact PPP states of biphenyl. In: Molecular Physics, 72 (3). pp. 537-547.
Albert, IDL and Das, Puspendu K and Ramasesha, S (1991) Second-harmonic generation and electronic structure of polymethineimines: a theoretical study. In: Chemical Physics Letters, 176 (2). pp. 217-224.
Ramasesha, S and Albert, IDL (1990) Model exact study of dc-electric-field-induced second-harmonic-generation coefficients in polyene systems. In: Physical Review B: Condensed Matter and Materials Physics, 42 (13). pp. 8587-8594.
Sinha, Bhabadyuti and Albert, IDL and Ramasesha, S (1990) Stability of the high-spin ground state in alternant $\pi$-conjugated organic molecules. In: Physical Review B: Condensed Matter and Materials Physics, 42 (14). pp. 9088-9097.
Ramasesha, S and Das, Puspendu K (1990) Second harmonic generation coefficients in push-pull polyenes:a model exact study. In: Chemical Physics, 145 (3). pp. 343-353.
Albert, IDL and Ramasesha, S (1990) Sudden Polarization in Push-Pull Polyenes: A Model Exact Study. In: Journal of Physical Chemistry, 94 (17). pp. 6540-6543.
Albert, IDL and Das, Puspendu K and Ramasesha, S (1990) A model exact calculation of SHG coefficients in polysubstituted push-pull polyenes. In: Chemical Physics Letters, 168 (5). pp. 454-460.
Ramasesha, S and Albert, IDL (1990) Sudden polarization in interacting model $\pi$ systems: An exact study. In: Chemical Physics, 142 (3). pp. 395-402.
Ramasesha, S (1990) A new algorithm for solving large inhomogeneous linear system of algebraic equations. In: Journal of Computational Chemistry, 11 (5). pp. 545-547.
Albert, IDL and Ramasesha, S (1989) Intermolecular interactions in pi -conjugated systems: Application to polyenes. In: Physical Review B: Condensed Matter, 40 (12). pp. 8516-8521.
Sarma, DD and Ramasesha, S and Taraphder, A (1989) Hole pairing within an extended Anderson impurity model applicable to the high-Tc cuprates. In: Physical Review B: Condensed Matter, 39 (16). 12286 -12289.
Ramasesha, S (1989) Effects of electron correlations in conjugated organic molecules and solids. In: Journal of Molecular Structure, 194 . pp. 149-162.
Ramasesha, S and Albert, IDL (1989) Exact static polarizabilities of correlated finite model systems. In: Chemical Physics Letters, 154 (5). 501-504 .
Albert, IDL and Ramasesha, S (1989) Numerically Exact Study of Polarizabilities and Hyperpolarizabilities of Correlated Conjugated Organic Models. In: Molecular Crystals & Liquid Crystals, 168 . pp. 95-101.
Mazumdar, S and Ramasesha, S (1988) Organic Superconductivity: An Experiment Based Theory. In: Synthetic Metals, 27 (1-2). A105-A113.
Das, Krishna and Ramasesha, S (1988) Valence bond analysis of the Kondo chain Hamiltonian. In: Solid State Communications, 66 (10). pp. 1047-1051.
Sreedhar, K and Ganguly, P and Ramasesha, S (1988) Investigations on Bi2CuO4: a quasi-one-dimensional oxide system. In: Journal of Physics C: Solid State Physics, 21 (6). 1129 -1136.
Ramasesha, S (1987) Estimation of Correlation Energy and the Exchange Constant in Yttrium Barium Copper Oxides. In: Chemical Physics Letters, 141 (5). pp. 401-404.
Ramasesha, S and Das, Krishna (1987) Static Spin Correlations in Singlet States via Triplet Overlap Integrals. In: Chemical Physics Letters, 138 (5). pp. 462-464.
Ramasesha, S (1986) A Diagrammatic Valence Bond Method for Configuration Interaction Calculations in Atoms and Molecules. In: Chemical Physics Letters, 130 (6). pp. 522-525.
Ramasesha, S (1986) Electron-electron interactions in polyacetylene. In: Proceedings of the Indian Academy of Sciences - Chemical Sciences, 96 (6). pp. 509-521.
Ramasesha, S (1984) An explanation of the phenomenon of polytypism. In: Pramana, 23 (6). pp. 745-749.
Yashonath, S and Krishnamurthy, Bani and Ramasesha, S and Rao, CNR (1982) Monte Carlo simulation of mictomagnets. In: Zeitschrift für Physik B: Condensed Matter, 46 (4). pp. 341-346.
Uppal, MK and Ramasesha, S and Rao, CNR (1980) Computer simulation of polytypes. In: Acta Crystallographica Section A Crystal Physics, Diffraction, Theoretical and General Crystallography, 36 (3). pp. 356-361.
Ramasesha, S and Ramakrishnan, TV and Rao, CNR (1979) Models for spin-state transitions in solids. In: Journal of Physics C: Solid State Physics, 12 (7). pp. 1307-1317.
Sarode, PR and Ramasesha, S and Madhusudan, WH and Rao, CNR (1979) Relation between effective atomic charge and chemical shifts in X-ray absorption spectra of transition-metal compounds. In: Journal of Physics C: Solid State Physics, 12 (12). pp. 2439-2445.
Ramasesha, S (1978) Monte Carlo simulation of Ising chains showing several phase transitions. In: Journal Of Physics C-Solid State Physics, 11 (21). pp. 4355-4362.
Rao, CNR and Ramasesha, S (1977) Monte Carlo simulation of polytypes. In: Philosophical Magazine , 36 (4). pp. 827-833.
Ramasesha, S (2014) Combating plagiarism in scientific research. In: CURRENT SCIENCE, 107 (1). p. 11.
Ramasesha, S and Sen, Diptiman (2011) It is time to integrate science and technical education at the undergraduate level. In: Current Science (Bangalore), 100 (6). p. 801.
Ramasesha, S and Sen, Diptiman (2011) Misuse of scientometry for individual assessment. In: Current Science (Bangalore), 100 (4). p. 446.
Sen, Diptiman and Ramasesha, S (2010) Honorarium for Bhatnagar Awardees and Fellows. In: Cerrent science, 98 (1). p. 7.
Narayan, KS and Ramasesha, S (2005) Special issue: Sixth International Topical Conference on Optical Probes of Conjugated Polymers and Biosystems, Bangalore-INDIA, January 4-8th, 2005 - Preface. In: Synthetic Metals, 155 (2, Sp. Iss. SI). p. 241.
Raghunathan, Rajamani and Ramasesha, S and Mathoniere, Corine and Marvaud, Valerie (2005) Microscopic Model for Photoinduced Magnetism in the Molecular Complex $[Mo(IV )(CN)_2(CN-CuL)_6]^8^+$ Perchlorate. [Preprint]
