ALaFeVO6 (A=Ca, Sr): new double-perovskite oxides

Ramesha, K. ; Gopalakrishnan, J. ; Smolyaninova, V. ; Greene, R. L. (2001) ALaFeVO6 (A=Ca, Sr): new double-perovskite oxides Journal of Solid State Chemistry, 162 (2). pp. 250-253. ISSN 0022-4596

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Official URL: http://linkinghub.elsevier.com/retrieve/pii/S00224...

Related URL: http://dx.doi.org/10.1006/jssc.2001.9281

Abstract

We describe the synthesis and structural characterization of two new double perovskites, ALaFeVO6 (A=Ca, Sr), where Fe3+/V4+ are partially ordered at the octahedral sites. The small charge difference between Fe3+/V4+ precludes the formation of a long-range ordered double-perovskite structure even on prolonged annealing at 1000°C. Electrical conductivity and magnetic susceptibility measurements show that both phases are weakly ferrimagnetic semiconductors where dis-ordered Fe3+-O-V4+ pairs persist even up to ~350 K.

Item Type:Article
Source:Copyright of this article belongs to Elsevier Science.
Keywords:Double Perovskite; ALaFeVO6 (A=Ca, Sr)
ID Code:12562
Deposited On:13 Nov 2010 13:21
Last Modified:02 Jun 2011 10:49

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