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Contribution of nonequilibrium optical phonons to the Peltier and Seebeck effects in polar semiconductors (1998)

Ivanov, Yu. V. ; Zaitsev, V. K. ; Fedorov, M. I.

Springer

Physics of the solid state 40 (1998), S. 1101-1106

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ISSN: 1063-7834

Source: Springer Online Journal Archives 1860-2000

Topics: Physics

Notes: Abstract Additive contributions to the Seebeck and Peltier coefficients made by nonequilibrium longitudinal optical phonons have been calculated. The results obtained are valid for any temperature and applicable to polar nondegenerate semiconductors with low carrier concentrations. The calculated components of the thermoelectric coefficients are exponentially small in the low-temperature domain and reach a maximum at k BT∼ħω 0. In materials with a large carrier mass and strong electron-phonon coupling the contribution of optical phonons to the Seebeck coefficient can exceed 1 mV/K.

Type of Medium: Electronic Resource

URL: http://dx.doi.org/10.1134/1.1130497

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