J. Phys. Soc. Jpn. 53 (1984) pp. 2452-2455 |Next Article| |Table of Contents|
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Spin-Wave Analysis of the Antiferromagnetic Plane Rotator Model on the Triangular Lattice–Symmetry Breaking in a Magnetic Field
Department of Physics, College of General Education Osaka University
(Received May 14, 1984)
Lowest-order spin-wave analysis is applied to the antiferromagnetic plane rotator model on the triangular lattice in order to study the low-temperature properties in the presence of magnetic fields. Equilibrium spin configuration in the zero-temperature limit is calculated as a function of the magnetic field. It is found that the thermal-fluctuation effect reduces a continuous degeneracy of the ground state to a discrete one at non-zero temperatures.
©1984 The Physical Society of Japan
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