Cluster Model Calculation for X-Ray Magnetic Circular Dichroism at Rare-Earth (R) L_2,3 Absorption Edges in R_2Fe_14B(Condensed Matter : Electronic Structure, Electrical, Magnetic and Optical Properties)

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概要

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• X-ray magnetic circular dichroism (MCD) at the L_2,3 absorption edges for the entire series of rare-earth (RE) elements in R_2Fe_14B (R = RE) is studied based on a cluster model including 10 RE and 16 Fe atoms. The cluster model takes into account band effects of RE 5d states, to which the electric dipole transition occurs from the core 2p states, as well as spin polarization of the 5d states due to the interatomic hybridization with the spin polarized Fe 3d states. We also take into account spin and orbital polarization of the 5d states due to the 5d-4f intra-atomic exchange interaction, and the 2p to 4f quadrupole transition. The calculated results are in satisfactory agreement with experimental ones, suggesting that the cluster model calculation provides a new method to calculate quantitatively MCD spectra of RE systems with complicated atomic arrangements.

• 社団法人日本物理学会の論文
• 2002-11-15

著者

• KOTANI Akio

  Institute for Solid State Physics,University of Tokyo

• Jun′ichiro Nakahara

  Graduate School Of Science Hiroshima University

• 小谷 章雄

  SPring-8

• 小谷 章雄

  理研 Spring-8:高エ研

• Harada I

  Okayama Univ. Okayama

• Harada Isao

  Department Of Physics Faculty Of Science Okayama University

• Harada Isao

  Institute For Solid State Physics University Of Tokyo

• Harada Isao

  Department Of Physics Faculty Of Science Kobe University

• OGASAWARA Haruhiko

  Institute for Solid State Physics, University of Tokyo

• Kotani Akio

  Department Of Mechanical Engineering Osaka University

• Ogasawara H

  Spring-8:(present Address)school Of Physics And Physics Research Division Seoul National Universty

• Ogasawara Haruhiko

  Institute For Solid State Physics University Of Tokyo

• FUKUI Keiji

  Institute for Solid State Physics, University of Tokyo

• ASAKURA Kaname

  Department of Physics, Faculty of Science, Okayama University

• NAKAHARA Jun

  Department of Physics, Faculty of Science, Okayamna University

• 小谷 章雄

  理化学研究所播磨研究所

• Ogasawara Hiromitsu

  Department Of Materials Science And Technology Iwate University

• Kotani Akio

  Institute For Solid State Physics The University Of Tokyo

• Fukui K

  Research Center For Development Of Far-infrared Region Fukui University

• Asakura Kaname

  Department Of Physics Faculty Of Science Okayama University

• Nakahara Jun

  Department Of Physics Faculty Of Science Okayamna University:(present Address) Hitachi Information S

• Kotani Akio

  Institut De Physique Et Chimiedes Materiaux De Strasbourg Cnrs

• KOTANI Akio

  Department of Physics, Tohoku University : Institute for Solid State Physics, University of Tokyo

• HARADA Isao

  Department of Physics, Kobe University : Department of Physics, Okayama University

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