Seebeck coefficients of half-metallic ferromagnets

Details Seebeck coefficients of half-metallic ferromagnets Seebeck coefficients of half-metallic ferromagnets

2009-11-03

arxiv.org/abs/0911.0553v1

Physics

Condensed Matter

Materials Science

accepted contribution o the Special Issue "Spin Caloritronics" of Solid State Communications

Scientific paper

In this report the Co2 based Heusler compounds are discussed as potential materials for spin voltage generation. The compounds were synthesized by arcmelting and consequent annealing. Band structure calculations were performed and revealed the compounds to be half-metallic ferromagnets. Magnetometry was performed on the samples and the Curie temperatures and the magnetic moments were determined. The Seebeck coefficients were measured from low to ambient temperatures for all compounds. For selected compounds high temperature measurements up to 900 K were performed.

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