Magnetostructural Correlations in Nitrogen-Deficient Antiperovskite Mn3CuN1-δ
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概要
- 論文の詳細を見る
Ferromagnetic shape memory effects of antiperovskite Mn3CuN are markedly altered by nitrogen deficiency. The martensitic transformation occurs at a lower temperature than ferromagnetic ordering for nitrogen-deficient Mn3CuN0.8, although they both occur simultaneously for stoichiometric Mn3CuN. In the martensitic phase, Mn3CuN0.8 contracts in a direction parallel to the magnetic field, in contrast to the expansion observed in Mn3CuN, implying that the easy axis is converted from the longer $a$ axis in Mn3CuN to the shorter $c$ axis in Mn3CuN0.8. The operating magnetic field for magnetostriction drastically decreases for Mn3CuN0.8, suggesting a possible supermagnetostriction around the critical compositional region for the easy-axis conversion.
- Physical Society of Japanの論文
- 2010-07-15
著者
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Koyama Keiichi
High Field Lab. For Superconducting Materials Inst. For Materials Res. Tohoku Univ.
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Takenaka Koshi
Department Of Crystalline Materials Science Nagoya University
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Asano Kazuko
Department of Crystalline Materials Science, Nagoya University, Nagoya 464-8603, Japan
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Shibayama Takashi
Department of Crystalline Materials Science, Nagoya University, Nagoya 464-8603, Japan
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- Magnetostructural Correlations in Nitrogen-Deficient Antiperovskite Mn3CuN1-δ
- Tomonaga-Luttinger Liquid-Fermi Liquid Transition in Chain of PrBa_2Cu_4O_8(Condensed Matter : Electronic Structure, Electrical, Magnetic and Optical Properties)