Nonanalytic behavior of two-dimensional itinerant ferromagnets

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

Research output: Contribution to journalArticlepeer-review

23 Citations (Scopus)

Abstract

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
Number of pages4
JournalPhysical Review. B, Condensed matter and materials physics
Volume77
DOIs
Publication statusPublished - Jun 2008

Keywords

  • PHASE-TRANSITIONS
  • QUANTUM
  • SYSTEMS

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