Dynamical Susceptibility of Proton in a Two-Morse Potential
Journal of the Physical Society of Japan Volume 73 Issue 12
Page 3466-3470
published_at 2004-12
Title
Dynamical Susceptibility of Proton in a Two-Morse Potential
Source Identifiers
[PISSN] 0031-9015
[NCID] AA00704814
Creator Keywords
double-minimum potential
proton tunnel
dynamic susceptibility
soft mode
over-damped
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.
Languages
eng
Resource Type
journal article
Publishers
The Physical Society of Japan
Date Issued
2004-12
Rights
Copyright c (2004)The Physical Society of Japan()
File Version
Author’s Original
Access Rights
open access
Relations
[isVersionOf]
https://doi.org/10.1143/JPSJ.73.3466
[isPartOf]
[URI]http://www.ipap.jp/jpsj/index.html
Schools
大学院理工学研究科（理学）