Magnetism of Quantum Solid with Strong Zero Point Lattice Vibration.II. A Proposed Model for hcp ^3He

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概要

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• In a quantum lattice of closely packed hard core fermions such as hcp 'He, thetunneling motion for particle exchange is strongly coupled with zero-point latticevibrations. The hybridization of the exchange tunneling and the zero-pointvibration is considered by a simplified model. In this model the exchange of anearest neighbour pair of fermions is supposed to grow rapidly when the thirdfermion closest to the pair is displaced to make enough space for the exchangetunneling.Such displacement is assumed to be described by the Einstein model. Thehigh temperature expansion series are obtained for the specific heat, for thepressure and for the susceptibility. It is shown that the susceptibility deviates fromthe Curie law in the direction usually seen in ferromagnets.It is demonstrated, however, that the hcp quantum solid does not exhibit thesimple ferromagnetic spin order in the low temperature phase.

• 社団法人日本物理学会の論文
• 1984-12-15

著者

• IZUYAMA Takeo

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

• Izuyama Takeo

  Institute Of Physics College Of Aris And Sciences University Of Tokyo

• Matsumoto Koh

  Department Of Material Physics Faculty Of Engineering Science Osaka University

• MATSUMOTO Kazuyuki

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

• Matsumoto Kazuyuki

  Institute Of Physics College Of Arts And Sciences University Of Tokyo

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