New Series of Pentanary Oxides, AM2C6Te3O18(A = Pb, Sr; M = Mn, Cd; C = Ni, Co): Synthesis, Structure, and Magnetic and Optical Properties

Sivakumar, G and Mazumder, M and Lahiri, A and Sundaresan, A and Pati, S K and Maesato, M and Kitagawa, H and Gopalakrishnan, J and Natarajan, S (2020) New Series of Pentanary Oxides, AM2C6Te3O18(A = Pb, Sr; M = Mn, Cd; C = Ni, Co): Synthesis, Structure, and Magnetic and Optical Properties. In: Journal of Physical Chemistry C, 124 (45). pp. 25071-25077.

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Abstract

Mixed-metal oxides, AM2C6Te3O18 (A = Pb, Sr; M = Mn, Cd; C = Ni, Co), have been synthesized employing traditional solid-state methods. The prepared compounds were characterized by powder X-ray diffraction (PXRD) and the structures refined by Rietveld analysis. The optical absorption studies of the compounds were carried out employing UV-vis spectroscopy and the observed transitions were assigned to the octahedral transition metal ions. Magnetic studies were carried out on PbCd2Co6Te3O18, SrCd2Co6Te3O18, and SrCd2Ni6Te3O18, which indicated that the compounds order antiferromagnetically around 10 K. Computational approaches were employed to fit the observed magnetic behavior. © 2020 American Chemical Society. All rights reserved.

Item Type:	Journal Article
Publication:	Journal of Physical Chemistry C
Publisher:	American Chemical Society
Additional Information:	The copyright this belongs to American Chemical Society
Keywords:	Light absorption; Magnetism; Metal ions; Rietveld analysis; Transition metal compounds; Transition metals; Ultraviolet visible spectroscopy, Computational approach; Magnetic and optical properties; Magnetic behavior; Mixed metal oxide; Optical absorption studies; Powder X-ray diffraction (pXRD); Solid state method; UV-vis spectroscopy, Optical properties
Department/Centre:	Division of Chemical Sciences > Solid State & Structural Chemistry Unit
Date Deposited:	10 Feb 2021 10:33
Last Modified:	10 Feb 2021 10:33
URI:	http://eprints.iisc.ac.in/id/eprint/67447

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