Magnetism of the Single-Band Hubbard Model in the Strong Correlation Limit
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概要
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The wave-vector dependence of the magnetic susceptibility of the singleband Huddard model is calculated by means of the high temperature expansion in the strong correlation limit (U=∞). The transition temperatures are estimated from the inverse susceptibility evaluated up to (βt)^4. The ferromagnetic transition appears only in nearly half-filled triangular, bcc and fcc lattices, but not in square and sc lattices. The various magnetic structures are suggested to be possible if the electron density is varied.
- 理論物理学刊行会の論文
- 1981-06-10
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