Dynamical Susceptibility of Proton in a Two-Morse Potential

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概要

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• Dynamical susceptibility for a proton tunneling system is investigated by using the linear response theory and the mean field approximation. The double-minimum self-potential is constructed by a two-Morse potential, whose parameters are fixed to represent O?H stretching mode. Quantum mechanical calculations give a dynamic susceptibility showing a pronounced soft mode. The phase transitions for KDP and DKDP are described qualitatively, if an effective interaction between protons and a phenomenological damping factor are introduced. The temperature dependence of the dynamical susceptibility is discussed.

• 社団法人日本物理学会の論文
• 2004-12-15

著者

• Mashiyama Hiroyuki

  Faculty Of Science Yamaguchi University

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