You are here

Unified molecular field theory for collinear and noncollinear Heisenberg antiferromagnets

TitleUnified molecular field theory for collinear and noncollinear Heisenberg antiferromagnets
Publication TypeJournal Article
Year of Publication2015
AuthorsJohnston, DC
JournalPhysical Review B
Volume91
Pagination064427
Date Published02
Type of ArticleArticle
ISBN Number1098-0121
Accession NumberWOS:000350317300017
Keywordsphase-transition, triangular lattice
Abstract

= T-N) of noncollinear 120 degrees spin structures on triangular lattices is isotropic and independent of S and T and thus clarifies the origin of this universally observed behavior. The high-field magnetization and heat capacity for fields applied perpendicular to the ordering axis (collinear AFs) and ordering plane (planar noncollinear AFs) are also calculated and expressed for both types of AF structures as laws of corresponding states for a given S, and the reduced perpendicular field versus reduced temperature phase diagram is constructed.

DOI10.1103/PhysRevB.91.064427
Custom 1

Complex States