Magnetic-Field Induced First-Order Transition in the Frustrated XY Model on a Stacked Triangular Lattice

Abstract

The results of extensive Monte Carlo simulations of magnetic-field induced transitions in the xy model on a stacked triangular lattice with antiferromagnetic intraplane and ferromagnetic interplane interactions are discussed. A low-field transition from the paramagnetic to a 3-state (Potts) phase is found to be very weakly first order with behavior suggesting tricriticality at zero field. In addition to clarifying some long-standing ambiguity concerning the nature of this Potts-like transition, the present work also serves to further our understanding of the critical behavior at $T_N$, about which there has been much controversy.

10 pages (RevTex 3.0), 4 figures available upon request, CRPS-93-09

References in corpus (1)

• Histogram Monte Carlo study of next-nearest-neighbor Ising antiferromagnet on a stacked triangular lattice

Cited by in corpus (8)

• Strong-coupling perturbation theory for the two-dimensional Bose-Hubbard model in a magnetic field
• Tricritical behavior of the frustrated XY antiferromagnet
• Monte Carlo simulations of magnetic ordering in the fcc Kagome lattice
• Weak first-order transition in the quasi-one-dimensional frustrated XY antiferromagnet
• Magnetic Phase Diagram of the Ferromagnetically Stacked Triangular Ising Antiferromagnet
• Magnetic Phase Diagram of the Ferromagnetically Stacked Triangular XY Antiferromagnet: A Finite-Size Scaling Study
• Histogram Monte Carlo Simulation of the Geometrically Frustrated XY Antiferromagnet with Biquadratic Exchange
• Histogram Monte Carlo study of multicritical behavior in the hexagonal easy-axis Heisenberg antiferromagnet