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On the Functional Integral Method to the Hubbard Model
Author(s) -
Wosicki P.
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.2221360221
Subject(s) - hubbard model , coherent potential approximation , integral equation , quantum electrodynamics , field (mathematics) , functional integration , physics , statistical physics , mathematics , quantum mechanics , mathematical analysis , electronic structure , pure mathematics , superconductivity
Magnetic properties of nickel are studied with use of the single‐site coherent potential approximation in the functional integral method. For comparison various field models are considered. Interband interactions in the first approximation are taken into account.