Premium
Temperature dependence of the Righi‐Leduc coefficients for Na and K metals
Author(s) -
Zhernov A. P.
Publication year - 1981
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.2221070204
Subject(s) - pseudopotential , alkali metal , non equilibrium thermodynamics , phonon , thermodynamics , physics , condensed matter physics , kinetic energy , equation of state , materials science , quantum mechanics
For the first time the values of the Righi‐Leduc coefficient A RL for Na and K are determined within the framework of a microscopic pseudopotential model at low temperatures. It is shown, when neglecting the nonequilibrium state of the phonon subsystem that in order to find A RL for these alkali metals, it is sufficient to consider a set of one‐dimensional integral equations instead of the standard kinetic equation. An explanation is given of the experimentally revealed significant difference in the low‐temperature dependence of the Hall and Righi‐Leduc coefficients for Na and K.