Contribution of Degenerate Molecular Orbitals to Molecular Orbital Angular Momentum in Molecular Magnet Fe(Pc)(CN)_2(Condensed Matter : Electronic Structure, Electrical, Magnetic and Optical Properties)

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概要

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• We measured the static magnetic susceptibility and the electron spin resonance of the Fe(Pc)(CN)_2 complexes, and investigated the molecular magnetism of the unit Fe(Pc)(CN)_2. The magnetic susceptibility shows a highly anisotropic Curie behavior. Based on the electron spin resonance, we found a highly anisotropic g-value (g_1 = 3.62, g_2 = 1.11, and g_3 =0.52) in the molecular unit Fe(Pc)(CN)_2. This anisotropy is caused by the molecular orbital angular momentum in the degenerate next highest occupied molecular orbitals of the molecular unit Fe(Pc)(CN)_2. Since the molecular unit Fe(Pc)(CN)_2 has a unique structure with fourfold symmetry, the molecular orbital angular momentum has a finite value of l_z 〜 +1 and -1. The anisotropic molecular magnetism of the unit Fe(Pc)(CN)_2 contributes the highly anisotropic Curie behavior. The molecular unit Fe(Pc)(CN)_2 is a good candidate for a molecular magnet having high magnetic anisotropy.

• 社団法人日本物理学会の論文
• 2003-12-15

著者

• Naito Tomoyuki

  Department Of Materials Science And Technology Faculty Of Engineering Iwate University

• Maple M

  Univ. California California Usa

• Maeda M

  Department Of Engineering Physics Electronics And Mechanics Graduate School Of Engineering Nagoya In

• Inabe T

  Division Of Chemistry Hokkaido University

• MATSUDA M.

  Institute for Solid State Physics, University of Tokyo

• TAJIMA H.

  Institute for Solid State Physics, University of Tokyo

• NAITO T.

  Division of Chemistry, Graduate School of Science, Hokkaido University

• INABE T.

  Division of Chemistry, Graduate School of Science, Hokkaido University

• HANASAKI N.

  (Present address) Department of Applied, University of Tokyo

• HANASAKI N.

  Institute for Solid State Physics, University of Tokyo

• Matsuda Masaaki

  Department Of Physics Tohoku University

• Matsuda M

  Institute For Solid State Physics University Of Tokyo

• Maeda Masaki

  Department Of Engineering Physics Electronics And Mechanics Graduate School Of Engineering Nagoya In

• Naito T

  Hitachi Ltd. Ibaraki Jpn

• Hanasaki N.

  (present Address) Department Of Applied University Of Tokyo

• Naito T

  Division Of Chemistry Hokkaido University

• Nakasugi Tetsuro

  Process & Manufacturing Engineering Center Semiconductor Company Toshiba Corp.

• Nakasugi T

  Microelectronics Engineering Labs. Toshiba Corporation

• Hanasaki N.

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

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