Metallic ordered double-perovskite Sr2CrReO6 with maximal Curie temperature of 635 K

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27 June 2002

journal article
conference paper
Published by AIP Publishing in Applied Physics Letters

Vol. 81 (2) , 328-330
DOI:10.1063/1.1493646

Abstract

Electric, thermal, optical, and magnetic properties have been investigated for ferromagnetic (ferrimagnetic) ordered double perovskites,

A_{2} {CrReO}_{6}

(A = Sr

and Ca).

{Sr}_{2} {CrReO}_{6}

is found to be a metallic ferromagnet with a high Curie temperature

{(T}_{C} =635 K),

possibly the highest-

T_{C}

half metal among the perovskite family. By contrast,

{Ca}_{2} {CrReO}_{6}

is a ferromagnetic Mott insulator with

T_{C}

of 360 K.

Keywords

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