The electron-phonon coupling strength in TTF-TCNQ

H. Gutfreund; C. Hartzstein; M. Weger

doi:10.1016/0038-1098(80)90106-4

The electron-phonon coupling strength in TTF-TCNQ

H. Gutfreund^*, C. Hartzstein, M. Weger

^*Corresponding author for this work

Racah Institute of Physics

Research output: Contribution to journal › Article › peer-review

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Abstract

An ab-initio calculation of the electron relaxation rates in TTF-TCNQ for one phonon and two-phonon processes, resulting from the linear and quadratic electron-phonon coupling is performed. This calculation is based on the detailed molecular structure. It is shown that the relaxation rates due to quadratic coupling processes are at least of the same order of magnitude as the relaxation rate for one-phonon processes. The quadratic coupling processes are dominated by molecular librations, while the linear coupling processes are dominated by translations.

Original language	English
Pages (from-to)	647-651
Number of pages	5
Journal	Solid State Communications
Volume	36
Issue number	7
DOIs	https://doi.org/10.1016/0038-1098(80)90106-4
State	Published - 1980

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abstract = "An ab-initio calculation of the electron relaxation rates in TTF-TCNQ for one phonon and two-phonon processes, resulting from the linear and quadratic electron-phonon coupling is performed. This calculation is based on the detailed molecular structure. It is shown that the relaxation rates due to quadratic coupling processes are at least of the same order of magnitude as the relaxation rate for one-phonon processes. The quadratic coupling processes are dominated by molecular librations, while the linear coupling processes are dominated by translations.",

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AU - Hartzstein, C.

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N2 - An ab-initio calculation of the electron relaxation rates in TTF-TCNQ for one phonon and two-phonon processes, resulting from the linear and quadratic electron-phonon coupling is performed. This calculation is based on the detailed molecular structure. It is shown that the relaxation rates due to quadratic coupling processes are at least of the same order of magnitude as the relaxation rate for one-phonon processes. The quadratic coupling processes are dominated by molecular librations, while the linear coupling processes are dominated by translations.

AB - An ab-initio calculation of the electron relaxation rates in TTF-TCNQ for one phonon and two-phonon processes, resulting from the linear and quadratic electron-phonon coupling is performed. This calculation is based on the detailed molecular structure. It is shown that the relaxation rates due to quadratic coupling processes are at least of the same order of magnitude as the relaxation rate for one-phonon processes. The quadratic coupling processes are dominated by molecular librations, while the linear coupling processes are dominated by translations.

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The electron-phonon coupling strength in TTF-TCNQ

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