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

School of Physics and Astronomy

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

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
Number of pages	4
Journal	Physical Review. B, Condensed matter and materials physics
Volume	77
DOIs	https://doi.org/10.1103/PhysRevB.77.220401
Publication status	Published - Jun 2008

Keywords

PHASE-TRANSITIONS
QUANTUM
SYSTEMS

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10.1103/PhysRevB.77.220401

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title = "Nonanalytic behavior of two-dimensional itinerant ferromagnets",

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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author = "Efremov, {Dmitry V.} and Betouras, {Joseph J.} and Andrey Chubukov",

year = "2008",

month = jun,

doi = "10.1103/PhysRevB.77.220401",

language = "English",

volume = "77",

journal = "Physical Review. B, Condensed matter and materials physics",

issn = "1098-0121",

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AU - Efremov, Dmitry V.

AU - Betouras, Joseph J.

AU - Chubukov, Andrey

PY - 2008/6

Y1 - 2008/6

N2 - 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.

AB - 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.

KW - PHASE-TRANSITIONS

KW - QUANTUM

KW - SYSTEMS

U2 - 10.1103/PhysRevB.77.220401

DO - 10.1103/PhysRevB.77.220401

M3 - Article

SN - 1098-0121

VL - 77

JO - Physical Review. B, Condensed matter and materials physics

JF - Physical Review. B, Condensed matter and materials physics

ER -

Nonanalytic behavior of two-dimensional itinerant ferromagnets

Abstract

Keywords

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