Tricritical behavior of the frustrated XY antiferromagnet

Preprint

4 May 1994

preprint
Published by arXiv in arXiv

https://doi.org/10.48550/arXiv.cond-mat/9405009

Abstract

Extensive histogram Monte-Carlo simulations of the XY antiferromagnet on a stacked triangular lattice reveal exponent estimates which strongly favor a scenario of mean-field tricritical behavior for the spin-order transition. The corresponding chiral-order transition occurs at the same temperature but appears to be decoupled from the spin-order. These results are relevant to a wide class of frustrated systems with planar-type order and serve to resolve a long-standing controversy regarding their criticality.

Keywords

ANTIFERROMAGNET EXTENSIVE
MONTE CARLO SIMULATIONS
TRICRITICAL BEHAVIOR
SYSTEMS WITH PLANAR
XY ANTIFERROMAGNET
SPIN ORDER
FRUSTRATED

All Related Versions

Version 1, 1994-05-04, ArXiv
Published version: Physical Review B, 50 (21), 16113.

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