Structure of Charge Density Waves in Nearly Quarter-Filled One-Dimensional Electron-Phonon Systems

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概要

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• The ground states of nearly quarter-filled one-dimensional electron-phononsystems are numerically investigated by using Su-Schrieffer-Heeger's model and aFr6hlich-type model. When the electron filling factor is very near to but differentfrom 1 /4, the ground state is the soliton lattice. The structure factors of the CDW'sin the soliton lattice states are calculated and their square moduli are found to haveseveral peaks, the main one corresponding to the 2k. mode and others being ex-plained as its higher harrnonics. The behaviour of the higher harmonics as functionsof the filling factor and the e]ectro?v-phonon coupling constant is studied and themodel dependence is discussed. The distribution of the field gradient at off-chain sitesdue to the CDW is considered in connection with the quadrupole shift of the recentNMR measurement in Rb..,Mo0,.

• 社団法人日本物理学会の論文
• 1986-11-15

著者

• ONO Yoshiyuki

  Department of Physics,Toho University

• Yoshiyuki Ono

  Department Of Physics Toho University

• OHFUTI Yasushi

  Department of Physics,Faculty of Sciences,University of Tokyo

• Ono Yoshiyuki

  Department Of Physicis Toho University

• Ohfuti Yasushi

  Department Of Physics Faculty Of Science University Of Tokyo

• Ono Yoshiyuki

  Department Of Physics Faculty Of Science Toho University

• Ohfuti Yasushi

  Department of Material Physics,Osaka University

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