Magnetic Phase Diagram of the Ferromagnetically Stacked Triangular XY Antiferromagnet: A Finite-Size Scaling Study

Abstract

Histogram Monte-Carlo simulation results are presented for the magnetic-field -- temperature phase diagram of the XY model on a stacked triangular lattice with antiferromagnetic intraplane and ferromagnetic interplane interactions. Finite-size scaling results at the various transition boundaries are consistent with expectations based on symmetry arguments. Although a molecular-field treatment of the Hamiltonian fails to reproduce the correct structure for the phase diagram, it is demonstrated that a phenomenological Landau-type free-energy model contains all the esstential features. These results serve to complement and extend our earlier work [Phys. Rev. B {\bf 48}, 3840 (1993)].

5 pages (RevTex 3.0), 6 figures available upon request, CRPS 93-4

References in corpus (6)

• Critical Exponents of the Classical 3D Heisenberg Model: A Single-Cluster Monte Carlo Study
• Observation of FSS for a First Order Phase Transition
• Histogram Monte Carlo study of next-nearest-neighbor Ising antiferromagnet on a stacked triangular lattice
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Cited by in corpus (5)

• Strong-coupling perturbation theory for the two-dimensional Bose-Hubbard model in a magnetic field
• Tricritical behavior of the frustrated XY antiferromagnet
• Fluctuation-induced phase in CsCuCl3 in transverse magnetic field: Theory
• Weak first-order transition in the quasi-one-dimensional frustrated XY antiferromagnet
• Magnetic Phase Diagram of the Ferromagnetically Stacked Triangular Ising Antiferromagnet