Anisotropic Magnetoresistance in Fe-Co-Ni Alloys
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概要
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The anisotropic magnetoresistance AMR of fcc FeCoNi alloys was measured using single crystals to investigate its mechanism and to make clear the relation between AMR and magnetostriction. AMR tensor components K_1 and k_2 were evaluatecd. The maximum of k_1 (〜(Δρ/ρ)_<I//[001]>) and the minimum of k_2 (〜(Δρ/ρ)_<I//[111]>) at 10K are about 68% and -32%, respectively, both of which are observed around Ni_<80>Co<20>. The value of k_1 exhibits a maximum at the mean electron number per atom e/a〜27.8 and shows a small hump at e/a〜26.8. At these e/a values, the magnetostriction constant λ_<100> becomes zero. The relation between AMR and magnetostriction is discussed.
- 1999-01-20
著者
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SAITO H.
Department of Pharmacy, Kyoto University Hospital
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Ishio S.
Department of Materials Science and Engineering Akita University
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Haga H.
Department Of Anatomy And Developmental Neurobiology University Of Tokushima School Of Medicine
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Ishio S.
Department Of Applied Physics Tohoku University
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Shindo S.
Department of Materials Science and Engineering Akita University
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