Antiferromagnetic phase transition in high-Tc superconductors
L. Hu, L. P. Shi, X. M. Hua
DOI 10.1103/PhysRevB.40.11306 · Physical Review B
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Abstract
A random-phase-approximation calculation of the antiferromagnetic phase transition temperature TN for the Zou-Anderson spinor-holon effective Hamiltonian is given. The calculation includes spin-exchange interaction, which enlarges the bandwidth. The results show that at low temperature KBTN/J is a function of δU/2t; where δ is the doping fraction, t the doping integral, and U the Hubbard U.
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