HISTOGRAM MONTE-CARLO STUDY OF THE NEXT-NEAREST-NEIGHBOR ISING ANTIFERROMAGNET ON A STACKED TRIANGULAR LATTICE

Article

关键词: MAGNETIC PHASE-DIAGRAMS;    MEAN-FIELD THEORY;    CRITICAL-BEHAVIOR;    3 DIMENSIONS;    TRANSITIONS;    MODEL;    HEISENBERG;    SYSTEMS;    XY;   

DOI  :  10.1103/PhysRevB.47.14312

来源: SCIE

【 摘 要 】

Critical properties of the Ising model on a stacked triangular lattice, with antiferromagnetic first- and second-neighbor in-plane interactions, are studied by extensive histogram Monte Carlo simulations. The results, in conjunction with the recently determined phase diagram, strongly suggest that the transition from the period-3 ordered state to the paramagnetic phase remains in the XY universality class. This conclusion is in contrast with a previous suggestion of mean-field tricritical behavior.

【 授权许可】

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