High Pressure Effects on the Quantum Tunneling of Magnetization in Mn_<12> Acetate

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概要

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• The efl'ect of high presstrre on the quanturn ttunneling of raaagnetization (QT.NI) in the single-naolecttle naagnet, IVII1]2 ;tcetate (N11112012(O2CCH3)16(1120)4), was sttrdied at 2.4K. As thepresstrre is increased, the QTIVI is strppressed significantly with a slight high-field shift of theresonance field that indicates an incre?rse in the heigltt of the potential barrier between the Lip-and down-spin states. At 21 taaaxiunuuaa pICSSLll'C of' 1.0 GPa, the QTIVI rate decreases by 50%, whilethe resonance field increases by 3.5'll{. The observed presstrre dependence can be qtrantitativelyinterpreted in terraas of' the thermally-activated QTIVI mechanism.

• 社団法人日本物理学会の論文
• 1998-09-15

著者

• OGATA Masao

  Department of Physics, University of Tokyo

• Awaga Kunio

  Department Of Chemistry Graduate School Of Science University Of Nagoya

• Awaga Kunio

  Department Of Basic Science Graduate School Of Arts And Sciences The University Of Tokyo:presto Japa

• Awaga Kunio

  Department Of Basic Science Graduate School Of Arts And Sciences The University Of Tokyo

• Ogata Masao

  Department Of Basic Science Graduate School Of Arts And Sciences The University Of Tokyo:institute F

• Ogata Masao

  Department Of Basic Science Graduate School Of Arts And Sciences The University Of Tokyo

• MURATA Yoshitaka

  Department of Applied Physics, Waseda University

• TAKEDA Keiji

  Department of Basic Science,Graduate School of Arts and Sciences,The University of Tokyo

• SEKINE Taketoshi

  Department of Basic Science,Graduate School of Arts and Sciences,The University of Tokyo

• Takeda Keiji

  Department Of Basic Science Graduate School Of Arts And Sciences The University Of Tokyo

• Murata Yoshitaka

  Department Of Applied Physics Waseda University:kagami Memorial Laboratory For Material Science And

• Murata Yoshitaka

  Department Of Basic Science Graduate School Of Arts And Sciences The University Of Tokyo

• Sekine Taketoshi

  Department Of Basic Science Graduate School Of Arts And Sciences The University Of Tokyo

• Ogata Masao

  Department Of Basic Science Graduate School Of Arts And Science University Of Tokyo

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