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To Magnetic Solutions of the Hubbard Model
Author(s) -
Lindner U.,
Schumacher W.
Publication year - 1989
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.2221550127
Subject(s) - hubbard model , phase diagram , condensed matter physics , lattice (music) , physics , simple (philosophy) , mathematical physics , phase (matter) , quantum mechanics , superconductivity , acoustics , philosophy , epistemology
From the existence of double solutions of the Néel temperature in the Hubbard model for nearest neighbour overlap and simple cubic lattice in the framework of the Hartree‐Fock approximation as well as within the unified theory of Moriya and Hasegawa it follows that it is necessary to conclude further magnetic (commensurable and incommensurable) phases in the magnetic phase diagram. The investigation is restricted to magnetic long‐range order.