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Nonlinear concentration dependence of the low‐temperature thermal resistivity in metals containing impurity atoms
Author(s) -
Kagan Yu.,
Zhernov A. P.,
Pashaev Kh. M.
Publication year - 1975
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.2220690133
Subject(s) - impurity , electrical resistivity and conductivity , condensed matter physics , electron , scattering , inelastic scattering , materials science , phonon , thermal conductivity , electron temperature , atomic physics , chemistry , physics , organic chemistry , quantum mechanics , optics , composite material
It is shown that the specific interference of elastic scattering of electrons by impurity atoms and inelastic scattering of electrons by phonons, taking into account a real angular and energy dependence of the electron distribution function, results in a strongly nonlinear concentration dependence of the electron part of the thermal resistivity of a metal. The curve showing the temperature dependence of the inelastic part of the impurity thermal resistivity has a peak whose value depends on the concentration c of impurities. Simultaneously the coefficient B in the usual low‐temperature representation of the thermal resistivity, BT 2 , is also found to depend on c . A comparison with the experimental data is made.