New Partially Disordered Phases with Commensurate Spin Density Wave in Frustrated Triangular Lattice
作者： Takeo Takagi , Mamoru Mekata
DOI: 10.1143/JPSJ.64.4609
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摘要: We have studied magnetic ordering of frustrated classical Ising spins with S =1/2 on the antiferromagnetic triangular lattice taking into account 2nd and 3rd neighbor interactions by means Monte Carlo simulations mean field approximation. The second third give rise to first order phase transitions from ground state partially disorder states characterized quasi-long range Kosterlitz-Thouless character due spin frustration. These disordered phases 5- 9-sublattices commensurate sinusoidal density waves related 10- 18-clock XY models, respectively.
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