Numerical Study of the Magnetization Process of Nanoscale Ferrimagnetic Ring Mn_6R_6(Condensed Matter : Electronic Structure, Electrical, Magnetic and Optical Properties)

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概要

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• Magnetic interactions in the nanoscale ferrimagnetic ring [Mn (hfac)_2NITPh]_6 abbreviated as Mn_6R_6 are estimated by comparing experimental data with our numerical data as obtained from the exact diagonalization of a Heisenberg model. Our results suggest that next nearest neighbor radical-radical interactions are essential to reproduce the magnetic structure of Mn_6R_6 well. The existence of these interactions means that Mn_6R_6 is a kind of frustrated spin cluster. We predict that the field derivative of magnetization should have two peaks in the range of magnetic field 380-420T, which is beyond the range of current experimental observations. We also find that the local spin density of the frustrated model shows a different behavior from those of non-frustrated models studied in preceding works.

• 社団法人日本物理学会の論文
• 2004-06-15

著者

• 鈴木 直

  大阪大学大学院基礎工学研究科

• 坂本 博康

  Graduate School Of Material Science University Of Hyogo

• NAKANO Hiroki

  Graduate School of Material Science, University of Hyogo

• Suzuki N

  Toshiba Corp. Kawasaki Jpn

• Suzuki Naoshi

  Graduate School Of Engineering Science Osaka University

• Suzuki Naoshi

  Department Of Material Physics Osaka University

• Inoue Masayoshi

  Department Of Operative Dentistry Osaka Dental University

• Inoue Masataka

  Osaka Dental Univ. Osaka Jpn

• Kuroki K

  Department Of Applied Physics And Chemistry The University Of Electro-communications

• Inoue Masataka

  Department Of Operative Dentistry Osaka Dental University

• Inoue M

  Department Of Physics Kagoshima University

• TONOOKA Shun

  Graduate School of Engineering Science, Osaka University

• KUSAKABE Koichi

  Graduate School of Engineering Science, Osaka University

• Nakano Hiroki

  Department Of Immunology And Medical Zoology Hyogo College Of Medicine

• Nakano Hiroki

  Graduate School Of Material Science University Of Hyogo

• Tonooka Shun

  Graduate School Of Engineering Science Osaka University

• Kusakabe K

  Graduate School Of Engineering Science Osaka University

• Kusakabe Koichi

  Graduate School Of Engineering Science Osaka University

• 坂本 博康

  九州芸術工科大学画像設計学科

• Nakano Hiroki

  Graduate School And Faculty Of Science Himeji Institute Of Technology

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