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Magnetic Transitions in the Double Perovskite Sr2FeRe1-xFexO6(0≤X≤0.5)

Published online by Cambridge University Press:  01 February 2011

Haitao Gao ,
Vadim Ksenofotov ,
Joachim Barth ,
Martin Panthöefer ,
Felser Claudia  and
Wolfgang Tremel
Haitao Gao
Affiliation:
gao@uni-mainz.de, Inorganic and Analytical Chemistry Institute, University of Mainz, Chemistry, Mainz, Germany
Vadim Ksenofotov
Affiliation:
ksenofon@uni-mainz.de, Inorganic and Analytical Chemistry Institute, University of Mainz, Chemistry, Mainz, Germany
Joachim Barth
Affiliation:
barthj@uni-mainz.de, Inorganic and Analytical Chemistry Institute, University of Mainz, Chemistry, Mainz, Rheinland-Pfalz, Germany
Martin Panthöefer
Affiliation:
panthofer@uni-mainz.de, Inorganic and Analytical Chemistry Institute, University of Mainz, Chemistry, Mainz, Germany
Felser Claudia
Affiliation:
felser@uni-mainz.de, United States
Wolfgang Tremel
Affiliation:
tremel@uni-mainz.de, Inorganic and Analytical Chemistry Institute, University of Mainz, Chemistry, Mainz, Rheinland-Pfalz, Germany
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Abstract

The synthesis, structure, and magnetic and transport properties of solid solutions Sr2FeRe1-xFexO6 (0≤x≤0.5) are reported. A structural evolution in the solid solutions from a double perovskite to perovskite is observed with increasing Fe/Re disorder. Except for the metallic parent compound all members of the series are semiconducting. For the Fe-doped samples a change from ferrimagnetic interactions in the parent compound to a complex superposition of ferrimagnetic and antiferromagnetic interactions was observed. The magnetic moment decreases with x, whereas the Curie temperature TC remains unaffected. The magnetic and Mössbauer data suggest Fe to act as a redox-buffer.

Keywords

ferromagneticmagnetic propertiesmagnetoresistance (magnetic)
Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 1119: Symposium L – New Materials with High Spin Polarization and Their Applications , 2008 , 1119-L05-07
Copyright
Copyright © Materials Research Society 2009

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References

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