This article is cited in 4 papers

Equations for two-temperature Green's functions for a Heisenberg ferromagnet in the mode-coupling approximation

Yu. A. Tserkovnikov

Steklov Mathematical Institute, Russian Academy of Sciences

Abstract: We use the mode-coupling approximation to derive a closed system of equations for the Green's functions for the transverse and longitudinal spin components taking the sum rules related to the finiteness of the spin into account exactly.

Keywords: mode-coupling approximation, sum rules for spin operators.

Received: 08.10.2007

DOI: 10.4213/tmf6160

 English version: Theoretical and Mathematical Physics, 2008, 154:1, 165–174

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