Numerical Calculation of Thermodynamic Quantities of Spin-1/2 Anisotropic Heisenberg Ring
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概要
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Thermodynamic quantities such as specific heat and magnetic susceptibility are calculated numerically for the one-dimensional spin-1/2 Heisenberg-Ising model at Δ=0, ±0.5, ±1/√<2>. We use a set of nonlinear integral equations which is derived from the Bethe ansatz and from some assumptions on the distribution of quasi-momenta. In the same way we calculate the specific heat of the one-dimensional X-Y-Z model in zero field, putting various values into the coupling constants (J_x,J_y,J_z).
- 理論物理学刊行会の論文
- 1974-05-25
著者
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Takahashi Minoru
Department Of Appied Physics Tohoku University
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Takahashi Minoru
Department Of Physics College Of General Education Osaka University
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