Nonanalytic behavior of two-dimensional itinerant ferromagnets

Dmitry V. Efremov, Joseph J. Betouras, Andrey Chubukov

Research output: Contribution to journalArticlepeer-review

23 Scopus citations


We consider an ordered ferromagnet in the vicinity of a T=0 transition into a paramagnet. We show that the free energy and the transverse and longitudinal static susceptibilities contain nonanalyticities which destroy a continuous second-order transition. Depending on the parameters, the transition either becomes first order or occurs via an intermediate spiral phase.

Original languageEnglish (US)
Article number220401
JournalPhysical Review B - Condensed Matter and Materials Physics
Issue number22
StatePublished - Jun 9 2008


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