期刊
PHYSICAL REVIEW B
卷 82, 期 13, 页码 -出版社
AMER PHYSICAL SOC
DOI: 10.1103/PhysRevB.82.134434
关键词
-
资金
- NSFC [10625419, 10934008, 90922033]
- Chinese Academy of Sciences
The two-dimensional Ising model on a distorted kagome lattice is studied by means of exact solutions and the tensor renormalization-group (TRG) method. The zero-field phase diagrams are obtained, where three phases such as ferromagnetic, ferrimagnetic, and paramagnetic phases, along with the second-order phase transitions, have been identified. The TRG results are quite accurate and reliable in comparison to the exact solutions. In a magnetic field, the magnetization (m), susceptibility, and specific heat are studied by the TRG algorithm, where the m = 1/3 plateaux are observed in the magnetization curves for some couplings. The experimental data of susceptibility for the complex Co(N-3)(2)(bpg)center dot DMF(4/)3 are fitted with the TRG results, giving the couplings of the complex J = 22 K and J' = 33 K.
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