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Growth and Properties of Half-Metallic Double Perovskite Thin Films

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Abstract:

Ferromagnetic oxides with ordered double-perovskites Sr2FeMoO6 and Sr2CrReO6 are known to be in a half-metallic ground state with high Curie temperatures Tc, and hence one of the promising materials for spin electronics. This paper reports epitaxial growth and micro-structural, magnetic, and electrical characterization of thin films of these oxides. It is shown that a coherent growth without strain relaxation, which is accomplished by the use of substrate or buffer layers with a small (0.1%) lattice match, is essential to obtain high quality films with both atomically flat surface and high magnetization values expected for their half-metallicity

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Periodical:

Materials Science Forum (Volumes 475-479)

Pages:

2197-2202

DOI:

https://doi.org/10.4028/www.scientific.net/MSF.475-479.2197

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Online since:

January 2005

Authors:

Hidefumi Asano, Norihito Koduka, Mikito Sugiyama, Masaaki Matsui

Keywords:

Half-Metal, Magnetic Property, Perovskite Oxide, Thin Film, Transport

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© 2005 Trans Tech Publications Ltd. All Rights Reserved

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