| 具有长程相互作用S-1/2 Heisenberg反铁磁体链研究 |
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| 引用本文： | 李嘉亮,类淑国. 具有长程相互作用S-1/2 Heisenberg反铁磁体链研究[J]. 河南师范大学学报(自然科学版), 2008, 36(6) |
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| 作者姓名： | 李嘉亮 类淑国 |
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| 作者单位： | 常熟理工学院物理与电子科学系,江苏,常熟,215500;常熟理工学院江苏省新型功能材料重点建设实验室,江苏,常熟,215500;南京工业大学,应用物理系,南京,210009 |
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| 基金项目： | 江苏省新型功能材料重点建设实验室开放基金(06KFJJ004) |
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| 摘 要： | 采用平均场Jordan-Wigner变换分析方法,研究了外场中且具有Z方向均匀长程相互作用自旋-1/2Heisenberg XYZ反铁磁体链的热力学性质.得到了系统格点的亥姆赫兹自由能、内能、比热、磁化强度、磁化率等热力学量的解析表达式及其数值解,在退化条件下与其它文献的结果相符.
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| 关 键 词： | Heisenberg XYZ反铁磁体链 平均场Jordan-Wigner变换 长程相互作用 |
Spin-1/2 Antiferromagnetic Heisenberg Chain with Long-range Interactions |
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| LI Jia-liang,LEI Shu-guo. Spin-1/2 Antiferromagnetic Heisenberg Chain with Long-range Interactions[J]. Journal of Henan Normal University(Natural Science), 2008, 36(6) |
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| Authors: | LI Jia-liang LEI Shu-guo |
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| Abstract: | Using the mean-field Jordan-Wigner transformation,this paper studies the one-dimensional spin-Heisenberg XYZ antiferromagnetic chain with uniform long-range interactions among the z components of the spins in the transverse field.The research has obtained such analytic expressions and the numerical results of the thermodynamic quantities,as the Helmholtz free energy,internal energy,specific heat,magnetization and susceptibility.The results in the degenerate condition agree with that from other literatures |
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| Keywords: | XYZ antiferromagnetic chain mean-field Jordan-Wigner transformation long-range interactions |
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