Electronic Structure of Ni-Mn Alloys

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概要

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• Band structures of the ordered magnetic Ni-Mn alloys are investigated by APW method. These are ferromagnetic Ni_3Mn alloy and antiferromagnetic NiMn alloy. The density-of-states of NiMn and that of Ni_3Mn in the minority spin-state show a remarkable character. There appears a narrow and high band in the high energy region, which is separated up from the main band. There is a region of the low density-of-states between them and the Fermi energy lies in it. This means that bonding and antibonding orbitals are well separated in Ni_3Mn and NiMn. Further, the density-of-states of the Ni-rich Ni-Mn alloys is calculated by CPA. Comparing the calculated density-of-states at the Fermi energy with the observed electronic specific heat coefficient we conclude that the spin-state of the Ni-rich disordered alloys is not a simple paramagnetic state.

• 理論物理学刊行会の論文
• 1972-03-25

著者

• ASANO Setsuro

  Institute of Physics, College of Arts and Sciences, University of Tokyo

• YAMASHITA Jiro

  Institute for Solid State Physics, The University of Tokyo

• WAKOH Shinya

  Institute of Library and Information Science, University of Tsukuba

• Wakoh Shinya

  Institute For Solid State Physics The University Of Tokyo

• Asano Setsuro

  Institute For Solid State Physics The University Of Tokyo

• Yamashita Jiro

  Institute For Solid State Physics The University Of Tokyo

• WAKOH Shinya

  Institute for Solid State Physics, The University of Tokyo

• Asano Setsuro

  Institute for Solid State Physics, the University of Tokyo

• Yamashita J.

  Institute for Solid State Physics, the University of Tokyo

• Yamashita Jiro

  Gifu Die & Mold Engineering Co., Ltd.

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