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The effective interparticle screening and the local‐field correction in the spin‐polarized electron system
Author(s) -
Ivliev S. V.,
Sobakin V. N.
Publication year - 1991
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.2221640214
Subject(s) - electron , physics , spin (aerodynamics) , local field , vertex (graph theory) , function (biology) , condensed matter physics , field (mathematics) , quantum mechanics , mathematics , graph , pure mathematics , thermodynamics , discrete mathematics , evolutionary biology , biology
The screening properties of a system of interacting spin‐polarized electrons are investigated. The exact closed equation for the vertex function is received by a many‐particle approach and the main contribution to that function is founded on the linear approximation of the generalized screened potential. The local field factor is calculated and its strong electron density dependence is demonstrated. The compressibility is positive in a wide interval of electron densities.