High Spin Polarizaion of Ferrimagnetic Heusler-type Alloys in Mn-Cr-Z System (Z=IIIb, IVb, Vb Elements)(Condensed matter: electronic structure and electrical, magnetic, and optical properties)

元データ 2008-07-15

概要

First-principle total-energy calculations show that a ferrimagnetic state is most stable in Mn_2YZ (Y=Cr and Mn) with the Heusler structure and that among them there are highly spin-polarized ones with magnetic moments of 0, 1, and 2μ_B per formula unit. Electronic structures of nonstoichiometric alloys suggest that partial replacement of constituent atoms in the highly spin-polarized alloys can be made without a decrease in spin polarizaion. Our results predict that in Mn-Cr-Z alloys we may get highly spin-polarized alloys with magnetic moments per formula unit ranging from -0.8 to 2μ_B.

著者

FUJII Shinpei Department of Physics, Faculty of Science, Kagoshima University
OKADA Mitsuo Department of Physics, Faculty of Science, Kagoshima University
ISHIDA Shoji Department of Physics, Faculty of Science, Kagoshima University
ASANO Setsuro Institute of Physics, College of Arts and Sciences, University of Tokyo
浅野 摂郎 東大総合文化
Okada Mitsuo Department Of Biochemistry National Institute Of Agrobiological Sciences
Ishida Shoji Department Of Physics Faculty Of Science Kagoshima University
Fujii Shinpei Department Of Physics Faculty Of Science Kagoshima University
Asano Setsuro Institute For Solid State Physics The University Of Tokyo
Asano Setsuro The Graduate School Of/college Of Arts And Sciences The University Of Tokyo
Asano Setsuro Institute Of Physics College Of Arts And Sciences University Of Tokyo
Ishida Shuichi Division Of Cardiovascular Medicine Department Of Internal Medicine Ohmori Hospital Toho University
Okada Mitsuo Department Of Physics Faculty Of Science Kagoshima University
Okada Mitsuo Department Of Animal Husbandry Faculty Of Agriculture Tohoku University
浅野 攝郎 東大総合文化
Ishida S Department Of Physics Faculty Of Science Kagoshima University
Fujii S Department Of Physics Faculty Of Science Kagoshima University

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