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CDW‐SDW transition in the extended hubbard model
Author(s) -
Zhong Jian,
Zhang Kaiyi,
Chao K. A.,
Micnas R.,
Robaszkiewicz S.
Publication year - 1986
Publication title -
physica status solidi (b)
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.51
H-Index - 109
eISSN - 1521-3951
pISSN - 0370-1972
DOI - 10.1002/pssb.2221330116
Subject(s) - antiferromagnetism , hubbard model , phase diagram , condensed matter physics , ground state , symmetry (geometry) , charge ordering , physics , hartree , charge (physics) , phase transition , diagram , phase (matter) , quantum mechanics , mathematics , superconductivity , geometry , statistics
Abstract The ground state phase diagram of the extended Hubbard model for arbitrary electron density is investigated with the broken‐symmetry Hartree approximation. It is found that for two‐sublattice orderings, only the charge‐order and the antiferromagnetism exist without the mixed phase.