Title :
Drag effects in β-iron disilicide
Author :
Fedorov, M.I. ; Zaitsev, V.K. ; Ivanov, Yu.V. ; Popov, V.V.
Author_Institution :
A.F. Ioffe Physicotech. Inst., Acad. of Sci., St. Petersburg
Abstract :
The results of an experimental study of the Seebeck coefficient, electrical and thermal conductivity of pure and doped β-FeSi2 polycrystals in the temperature range 4.2-1000 K are presented in this paper. The contributions of possible mechanisms of current carrier transport to the Seebeck coefficient are discussed. The optical phonon drag effect contribution to the Seebeck coefficient is calculated for a band conduction mechanism. The reasons for the gigantic Seebeck coefficient at low temperature are discussed
Keywords :
Seebeck effect; electrical conductivity; iron compounds; phonon drag; semiconductor materials; thermal conductivity; β-iron disilicide; 4.2 to 1000 K; FeSi2; Seebeck coefficient; band conduction mechanism; current carrier transport; doped β-FeSi2 polycrystals; drag effects; electrical conductivity; gigantic Seebeck coefficient; low temperature; optical phonon drag effect contribution; thermal conductivity; Conducting materials; Crystalline materials; Frequency; Iron; Optical materials; Optical scattering; Phonons; Temperature distribution; Thermal conductivity; Thermoelectricity;
Conference_Titel :
Thermoelectrics, 1997. Proceedings ICT '97. XVI International Conference on
Conference_Location :
Dresden
Print_ISBN :
0-7803-4057-4
DOI :
10.1109/ICT.1997.667130
