期刊
PHYSICAL REVIEW B
卷 73, 期 21, 页码 -出版社
AMERICAN PHYSICAL SOC
DOI: 10.1103/PhysRevB.73.212415
关键词
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A two-dimensional Ising-like model for a triangular spin-chain lattice, where each spin-chain is treated as a rigid giant spin, is proposed to investigate the magnetization of a triangular spin-chain lattice by Monte Carlo simulation. The simulations show the steplike evolution of the magnetization at low temperature against an external magnetic field, namely two steps above 10 K and four steps below 10 K, in quantitative agreement with experiments on a Ca3Co2O6 compound. It is argued that the interchain interaction and magnetic inhomogeneity of the lattice are two important ingredients to induce the intriguing steplike feature of the magnetization below 10 K.
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