Dynamical correlation functions and scattering from spin fluctuations near magnetic phase transitions

J. S. Helman*, S. Alexander, I. Balberg

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

2 Scopus citations

Abstract

Using general thermodynamic identities and inequalities, the critical behavior of integrals involving dynamic spin-correlation functions are discussed. For intrinsic spin interactions and a large class of integrands, including most cases of physical interest, it is shown that the most singular terms are of two types, the instantaneous-approximation result and a term directly proportional to the energy. It is shown that this holds for the dynamic correlation function itself. The critical behavior of the resistivity, thermopower, and thermal conductivity in magnetic metals are discussed explicitly.

Original languageEnglish
Pages (from-to)2623-2625
Number of pages3
JournalPhysical Review B
Volume19
Issue number5
DOIs
StatePublished - 1979

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