Title of article :
Spin polarized itinerant electrons in Ca2FeMoO6 double perovskites
Author/Authors :
Rubi، نويسنده , , D. and Nogués، نويسنده , , J. and Muٌoz، نويسنده , , J.S. and Fontcuberta، نويسنده , , J.، نويسنده ,
Issue Information :
روزنامه با شماره پیاپی سال 2006
Pages :
4
From page :
279
To page :
282
Abstract :
We report on magnetic studies of the double perovskite Ca2FeMoO6 in its paramagnetic state. It is found that the effective magnetic moment, extracted from the Curie constant, is magnetic field dependent and it is smaller than that expected in a simple ionic scenario. These experimental results, which are in agreement with early reports on Sr2FeMoO6, are interpreted as a direct evidence of the antiferromagnetic coupling and polarization of the conduction band in these oxides. A simple mean field model accounts for these observations and enlightens the relevance of itinerant carriers on the strength of the magnetic coupling in these oxides.
Keywords :
Antiferromagnetic coupling , Ca2FeMoO6 , Ferromagnetism
Journal title :
MATERIALS SCIENCE & ENGINEERING: B
Serial Year :
2006
Journal title :
MATERIALS SCIENCE & ENGINEERING: B
Record number :
2143672
Link To Document :
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