Charge Transfer Instability with Structural Change.II.Mean Field Theory for One-Dimensional N-Sites N-Electrons System
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概要
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Stable and metastable phases of a one-dimensional many-electron system withshort range electron-electron (e-e) repulsion and site-diagonal electron-phonon(e-p) interaction are studied within the mean field theory and in the adiabatic limit.The total energy of the system is calculated as a function of the three parameters :the transfer energy of the electron between neighbouring two sites T, the on-sitee-e repulsive energy U and the e-p coupling energy .5. The resultant phase diagramis such that the "T-U-S triangle" is bisected into the SDW and the CDW regionsby the border-line with U=S. The metastable SDW (CDW) phase exists in addi-lion to the stable CDW (SDW) phase in a narrow region around the bisector.The border-lines for the metastable phases and the bisector between the twostable phases flow together into the T-vertex of the triangle, indicating the in-triguing instability of one-dimensional metal against U and .5.
- 社団法人日本物理学会の論文
- 1982-07-15
著者
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Toyozawa Yutaka
The Institute For Solid State Physics The University Of Tokyo
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Nasu Keiichiro
The Institute For Solide State Physics The University Of Tokyo
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Toyozawa Yutaka
The Institute for Solide State Physics,The University of Tokyo
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