Single Band Hubbard Model with Infinite Repulsion on 2×2×2 Lattice

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概要

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• All the energy eigenvalues of the Hubbard model with infinite repulsion on2 x 2 x 2 cubic lattice for different electron numbers 7V. are calculated numerically.For N.=4, 7 the ground state is completely ferromagnetic; namely, total spinS is N./2. For 7V.=5, the total spin of the ground state is 3/2. For N.=2, 6, it iszero. For 7V,=1, 3, it is 1/2. Thermodynamic quantities such as entropy, suscep-tibility and specific heat are calculated with the method of canonical ensemble.There are two peaks in the specific heat curve for N.=4, 5, 6, 7, but only one peakfor 7V,=I, 2, 3.

• 社団法人日本物理学会の論文
• 1979-07-15

著者

• Takahashi Minoru

  The Institute For Solid State Physics The University Of Tokyo

• Takahashi Minoru

  The Institute for Solid State Physics,The University of Tokyo

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