Electronic Magnetic and Structural Properties of A2VM0O6 Perovskites (A = Ca, Sr)

Journal Article · Sun Jan 01 04:00:00 EST 2006 · Journal of Solid State Chemistry

DOI:https://doi.org/10.1016/j.jssc.2006.04.013· OSTI ID:930109

Karen, P; Moodenbaugh, A; Goldberger, J; Santhosh, P; Woodward, P

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+}.

• Research Organization: Brookhaven National Laboratory (BNL) National Synchrotron Light Source
• Sponsoring Organization: Doe - Office Of Science
• DOE Contract Number: AC02-98CH10886
• OSTI ID: 930109
• Report Number(s): BNL--80752-2008-JA
• Journal Information: Journal of Solid State Chemistry, Journal Name: Journal of Solid State Chemistry Vol. 179; ISSN 0022-4596; ISSN JSSCBI
• Country of Publication: United States
• Language: English

Related Subjects

43 PARTICLE ACCELERATORS
ATOMS
CITRATES
DIFFRACTION
EQUILIBRIUM
OXIDES
PEROVSKITES
POWDERS
SOLID SOLUTIONS
SYNCHROTRONS
VALENCE
national synchrotron light source