科研之友
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摘要
We study the S = 1 triangular lattice Ising antiferromagnet by Monte Carlo simulations. Frustrations between a major antiferromagnetic third-neighbor interaction, J(3), and a minor ferromagnetic nearest-neighbor interaction, J(1), cause incommensurate short-range orders at intermediate temperatures. At low temperatures (below T/J(3) less than or similar to 0.2 for J(1)/J(3) = -1/3), the system exhibits a fourfold periodic ordered state. In the short-range order phase, the system shows a glassy two-step relaxation. We demonstrate that the features of the short-range order are attributed to the cooperation between the frustrations and the nonmagnetic Ising spin states, which is a particular feature of integer spin systems.
- 出版日期2014-8
