| 外场中S-1/2xxz反铁磁体双链的研究 |
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| 引用本文： | 李嘉亮,类淑国.外场中S-1/2xxz反铁磁体双链的研究[J].河南师范大学学报(自然科学版),2010,38(4). |
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| 作者姓名： | 李嘉亮 类淑国 |
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| 作者单位： | 1. 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;常熟理工学院,物理与电子科学系,江苏,常熟,215500
2. 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 |
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| 摘 要： | 采用Jordan-Wigner变换和一级切断近似方法,讨论了外场中且具有Z方向均匀长程相互作用及Z方向链间长程耦合,自旋S-1/2XXZ反铁磁双链的热力学性质,得到了系统格点的亥姆赫兹自由能、内能、磁化强度、比热等热力学量的解析表达式及其数值解,数值结果在退化条件下与其它文献的结果符合很好.
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| 关 键 词： | XXZ反铁磁体双链 Jordan-Wigner变换 一级切断近似 |
A Study of the XXZ Antiferromagnetic Double Chain in the External Magnetic Field |
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| LI Jia-Liang,LEI Shu-Guo.A Study of the XXZ Antiferromagnetic Double Chain in the External Magnetic Field[J].Journal of Henan Normal University(Natural Science),2010,38(4). |
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| Authors: | LI Jia-Liang LEI Shu-Guo |
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| Abstract: | The XXZ antiferromagnetic model(spin-1/2)in a transverse field on a double chain with a uniform long-range interactions among the z components of the spins is studied using the the Jordan-Wigner transformation and cut-off approximation.The thermodynamic quantities results like Helmholtz free energy,the internal energy,the magnetization,the specific heat ity are obtained both analytically and numerically.The results in the degenerate condition agree with that from other literatures. |
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| Keywords: | XXZ antiferromagnetic Jordan-Wigner transformation cut-off approximation |
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