Nonanalytic behavior of two-dimensional itinerant ferromagnets

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

doi:10.1103/PhysRevB.77.220401

Nonanalytic behavior of two-dimensional itinerant ferromagnets

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

Physics and Astronomy (Twin Cities)

Research output: Contribution to journal › Article › peer-review

22 Scopus citations

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 language	English (US)
Article number	220401
Journal	Physical Review B - Condensed Matter and Materials Physics
Volume	77
Issue number	22
DOIs	https://doi.org/10.1103/PhysRevB.77.220401
State	Published - Jun 9 2008

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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.",

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