Crystal lattices - Ground state - Hamiltonians - Magnetic fields - Magnetization - Mathematical models - Monte Carlo methods - Phase diagrams;
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摘要:
A study of thermal order by disorder effect in magnetic field for a classical antiferromagnet on the Kagome lattice was performed. A unique H-T phase diagram for the strongly frustrated magnet was predicted using analytical arguments. The frustrated magnetic states were a coplanar and a uniaxial triatic order parameter at low and high magnetic fields and an incompressible collinear spin-liquid state at one-third of the saturation field.