Contribution of the heat flux of localized spins to the thermopower of a ferromagnetic semiconductor in the paramagnetic phase

V. P. Kalashnikov, M. I. Auslender, V. V. Karyagin

Research output: Contribution to journalArticlepeer-review

Abstract

The thermopower of a degenerate ferromagnetic semiconductor for T Tc is estimated with due regard to the heat transport arising from nonequilibrium spin fluctuations in the localized f-spin subsystem. Strong s-f interaction manifests itself in mutual drag of conduction electrons (or holes) and spin fluctuations. This leads to a correction term to the usual Mott-Jones thermopower, which is shown to be negative and essential only in the vicinity of the magnetic phase transition temperature (the Curie point) Tc.

Original languageEnglish
Pages (from-to)64-66
Number of pages3
JournalPhysics Letters, Section A: General, Atomic and Solid State Physics
Volume87
Issue number1-2
DOIs
StatePublished - 21 Dec 1981
Externally publishedYes

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