Collective Modes and Magnetic Susceptibility of SDW State with One-Dimensional Half-Filled Band
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概要
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The fluctuation around the molecular field of the spin density wave (SDW) state has been examined by calculating the collective modes and the spectral weight as a function of arbitrary strength of the repulsive on-site interaction, U, for a one-dimensional system with the half-filled band. The transverse mode is well described by the spin wave for both the small U and the large U and takes the spectral weight which is dominant compared with that of the longitudinal mode for the large U. The temperature dependence of the static magnetic susceptibility is calculated for both the longitudinal and transverse cases.
- 社団法人日本物理学会の論文
- 1995-06-15
著者
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Tanemura Noriko
Department Of Physics Nagoya University
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Suzumura Yoshikazu
Department Of Physics Faculty Of Science Tohoku University
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