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Iron Disilicide as a Base for New Improved Thermoelectrics Creation

Published online by Cambridge University Press:  10 February 2011

M. I. Fedorov ,
Yu. V. Ivanov ,
M. V. Vedernikov  and
V. K. Zaitsev
M. I. Fedorov
Affiliation:
A.F.Ioffe Physical-Technical Institute, Polytekhnicheskaya ul., 26, St.Petersburg, 194021, Russia, M.Fedorov@shuvpop.ioffe.rssi.ru
Yu. V. Ivanov
Affiliation:
A.F.Ioffe Physical-Technical Institute, Polytekhnicheskaya ul., 26, St.Petersburg, 194021, Russia, M.Fedorov@shuvpop.ioffe.rssi.ru
M. V. Vedernikov
Affiliation:
A.F.Ioffe Physical-Technical Institute, Polytekhnicheskaya ul., 26, St.Petersburg, 194021, Russia, M.Fedorov@shuvpop.ioffe.rssi.ru
V. K. Zaitsev
Affiliation:
A.F.Ioffe Physical-Technical Institute, Polytekhnicheskaya ul., 26, St.Petersburg, 194021, Russia, M.Fedorov@shuvpop.ioffe.rssi.ru
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Abstract

It is well known that the temperature dependence of Seebeck coefficient of β-iron disilicide has unusual shape that cannot be described by an ordinary theory. A theory describing such a shape is suggested. It is shown this shape can be explained by optical phonon drag effect. Very high value of ZT could be achieved in some material on the base of this effect.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 545: Symposium Z – Thermoelectric Materials 1998 - The Next Generation… , 1998 , 155
Copyright
Copyright © Materials Research Society 1999

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