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

fYear

1997

fDate

26-29 Aug 1997

Firstpage

291

Lastpage

294

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;

fLanguage

English

Publisher

ieee

Conference_Titel

Thermoelectrics, 1997. Proceedings ICT '97. XVI International Conference on

Conference_Location

Dresden

ISSN

1094-2734

Print_ISBN

0-7803-4057-4

Type

conf

DOI

10.1109/ICT.1997.667130

Filename

667130