skip to main content
OSTI.GOV title logo U.S. Department of Energy
Office of Scientific and Technical Information

Title: Electronic, magnetic and structural properties of A {sub 2}VMoO{sub 6} perovskites (A=Ca, Sr)

Abstract

The perovskites Sr{sub 2}VMoO{sub 6} and Ca{sub 2}VMoO{sub 6} have been synthesized by liquid-mix technique in citrate melts, and their electronic, magnetic and structural properties have been investigated. No signs of V/Mo ordering are seen by synchrotron X-ray powder diffraction, but despite the chemical disorder both oxides are highly conductive and Pauli paramagnetic. Electrical conductivities of these solid solutions are comparable or higher than those reported for polycrystalline AMoO{sub 3} end members. It is suggested that the delocalized metallic conductivity of these compounds with two different transition-metal atoms implies valence equilibrium between the degenerate oxidation-state couples V{sup 4+}Mo{sup 4+} and V{sup 3+}Mo{sup 5+}. - Graphical abstract: Unit cell of Ca(V{sub 0.5}Mo{sub 0.5})O{sub 3}.

Authors:
 [1];  [2];  [3];  [3];  [3]
  1. Department of Chemistry, University of Oslo, P.O. Box 1033 Blindern N-0315, Oslo (Norway)
  2. Condensed Matter Physics and Materials Science Department, Brookhaven National Laboratory, Upton, NY 11973-5000 (United States)
  3. Department of Chemistry, Ohio State University, 100 West 18th Avenue, Columbus, OH 43210-1185 (United States)
Publication Date:
OSTI Identifier:
20905357
Resource Type:
Journal Article
Journal Name:
Journal of Solid State Chemistry
Additional Journal Information:
Journal Volume: 179; Journal Issue: 7; Other Information: DOI: 10.1016/j.jssc.2006.04.013; PII: S0022-4596(06)00218-0; Copyright (c) 2006 Elsevier Science B.V., Amsterdam, The Netherlands, All rights reserved; Country of input: International Atomic Energy Agency (IAEA); Journal ID: ISSN 0022-4596
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE; CALCIUM COMPOUNDS; ELECTRIC CONDUCTIVITY; MOLYBDENUM IONS; MOLYBDENUM OXIDES; PARAMAGNETISM; PEROVSKITE; POLYCRYSTALS; SOLID SOLUTIONS; STRONTIUM COMPOUNDS; SYNCHROTRON RADIATION; VANADIUM COMPOUNDS; VANADIUM IONS; X-RAY DIFFRACTION

Citation Formats

Karen, P, Moodenbaugh, A R, Goldberger, J, Santhosh, P N, and Woodward, P M. Electronic, magnetic and structural properties of A {sub 2}VMoO{sub 6} perovskites (A=Ca, Sr). United States: N. p., 2006. Web. doi:10.1016/j.jssc.2006.04.013.
Karen, P, Moodenbaugh, A R, Goldberger, J, Santhosh, P N, & Woodward, P M. Electronic, magnetic and structural properties of A {sub 2}VMoO{sub 6} perovskites (A=Ca, Sr). United States. https://doi.org/10.1016/j.jssc.2006.04.013
Karen, P, Moodenbaugh, A R, Goldberger, J, Santhosh, P N, and Woodward, P M. 2006. "Electronic, magnetic and structural properties of A {sub 2}VMoO{sub 6} perovskites (A=Ca, Sr)". United States. https://doi.org/10.1016/j.jssc.2006.04.013.
@article{osti_20905357,
title = {Electronic, magnetic and structural properties of A {sub 2}VMoO{sub 6} perovskites (A=Ca, Sr)},
author = {Karen, P and Moodenbaugh, A R and Goldberger, J and Santhosh, P N and Woodward, P M},
abstractNote = {The perovskites Sr{sub 2}VMoO{sub 6} and Ca{sub 2}VMoO{sub 6} have been synthesized by liquid-mix technique in citrate melts, and their electronic, magnetic and structural properties have been investigated. No signs of V/Mo ordering are seen by synchrotron X-ray powder diffraction, but despite the chemical disorder both oxides are highly conductive and Pauli paramagnetic. Electrical conductivities of these solid solutions are comparable or higher than those reported for polycrystalline AMoO{sub 3} end members. It is suggested that the delocalized metallic conductivity of these compounds with two different transition-metal atoms implies valence equilibrium between the degenerate oxidation-state couples V{sup 4+}Mo{sup 4+} and V{sup 3+}Mo{sup 5+}. - Graphical abstract: Unit cell of Ca(V{sub 0.5}Mo{sub 0.5})O{sub 3}.},
doi = {10.1016/j.jssc.2006.04.013},
url = {https://www.osti.gov/biblio/20905357}, journal = {Journal of Solid State Chemistry},
issn = {0022-4596},
number = 7,
volume = 179,
place = {United States},
year = {Sat Jul 15 00:00:00 EDT 2006},
month = {Sat Jul 15 00:00:00 EDT 2006}
}