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The influence of anharmonicity on the electrical resistivity in TTF‐TCNQ
Author(s) -
Schiller W.,
Chilla E.,
Aksenov V.
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.2221350245
Subject(s) - electrical resistivity and conductivity , anharmonicity , condensed matter physics , constant (computer programming) , phonon , quadratic equation , materials science , volume (thermodynamics) , physics , thermodynamics , quantum mechanics , mathematics , geometry , computer science , programming language
Using the method of force‐correlation functions the electrical resistivity is calculated for a system consisting of linear chains with quadratic electron‐phonon interaction above the Peierls‐transition temperature. Calculating the resistivity the theory of anharmonic crystals is applied to evaluate the phonon‐correlation functions. The temperature dependence of the electrical resistivity at constant pressure and at constant volume is calculated. The results are compared with experimenta data for TTF‐TCNQ.