Electronic structure of $NaCuO_2$

Nimkar, Seva and Sharma, DD and Krishnamurthy, HR (1993) Electronic structure of $NaCuO_2$. In: Physical Reveiw B: Rapid Communication, 47 (16). pp. 10927-10930.

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Abstract

We analyze the experimental core-level photoemission and x-ray absorption (XA) spectra pf $NaCuO_2$ in terms of an Anderson-impurity Hamiltonian including the band-structure effects of the oxygen sublattice and show that the XA results unambiguously indicate a negative value of the charge transfer energy \Delta . We also perform mean-field calculations for the electronic structure for the edge-shared one-dimensional $CuO_2$ lattice of $NaCuO_2$ within the multiband Hubbard Hamiltonian and show that the origin of the insulating nature lies in band-structure rather than correlation effects, and that the gap has a $pd-p$ character.

Item Type:	Journal Article
Publication:	Physical Reveiw B: Rapid Communication
Publisher:	American Physical Society
Additional Information:	Copyright of this article belongs to American Physical Society.
Department/Centre:	Division of Chemical Sciences > Solid State & Structural Chemistry Unit Division of Physical & Mathematical Sciences > Physics
Date Deposited:	08 Jul 2008
Last Modified:	06 Jan 2011 08:02
URI:	http://eprints.iisc.ac.in/id/eprint/14860

Available Versions of this Item

• Electronic structure of $NaCuO_2$. (deposited 08 Jul 2008) [Currently Displayed]
  • Erratum: Electronic structure of $NaCuO_2$. (deposited 10 Jul 2008)

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