Thermopower near a critical point

Research output: Contribution to journalArticlepeer-review

Abstract

Previous calculations of the effect of a critical point on the thermopower of metallic ferromagnets are extended to include inelastic scattering processes. Denoting the (temperature-dependent) localized spin-spin correlation function by gk(), where k is the momentum transfer, and the frequency transfer, the thermopower is shown to be proportional to frequency integrals of g2kF() and frequency and wave-vector integrals of kgk(). Only if the spin-spin correlation function exhibits critical "slowing down" for all frequencies at all k's (an unlikely prospect) does our result reduce to those found previously.

Original languageEnglish
Pages (from-to)4015-4020
Number of pages6
JournalPhysical Review B-Condensed Matter
Volume14
Issue number9
DOIs
StatePublished - 1976

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