Dyson-Maleev theory of an X X Z ferrimagnetic spin chain with single-ion anisotropy

doi:10.1088/1674-1056/27/12/127501

中国物理B ›› 2018, Vol. 27 ›› Issue (12): 127501-127501.doi: 10.1088/1674-1056/27/12/127501

• CONDENSED MATTER: ELECTRONIC STRUCTURE, ELECTRICAL, MAGNETIC, AND OPTICAL PROPERTIES • 上一篇下一篇

Dyson-Maleev theory of an X X Z ferrimagnetic spin chain with single-ion anisotropy

Yu-Ge Chen(陈宇戈), Yin-Xiang Li(李殷翔), Li-Jun Tian(田立君), Bin Chen(陈斌)

1 College of Sciences, Shanghai University, Shanghai 200444, China;
2 Tin Ka-Ping College of Science, University of Shanghai for Science and Technology, Shanghai 200093, China

收稿日期:2018-04-28 修回日期:2018-09-18 出版日期:2018-12-05 发布日期:2018-12-05
通讯作者: Yin-Xiang Li, Bin Chen E-mail:yinxiangl@hotmail.com;chenbin@usst.edu.cn
基金资助:
Project supported by the National Natural Science Foundation of China (Grant No. 10774035) and the Qianjiang RenCai Program of Zhejiang Province, China (Grant No. 2007R0010).

Dyson-Maleev theory of an X X Z ferrimagnetic spin chain with single-ion anisotropy

Yu-Ge Chen(陈宇戈)¹, Yin-Xiang Li(李殷翔)², Li-Jun Tian(田立君)¹, Bin Chen(陈斌)²

1 College of Sciences, Shanghai University, Shanghai 200444, China;
2 Tin Ka-Ping College of Science, University of Shanghai for Science and Technology, Shanghai 200093, China

Received:2018-04-28 Revised:2018-09-18 Online:2018-12-05 Published:2018-12-05
Contact: Yin-Xiang Li, Bin Chen E-mail:yinxiangl@hotmail.com;chenbin@usst.edu.cn
Supported by:
Project supported by the National Natural Science Foundation of China (Grant No. 10774035) and the Qianjiang RenCai Program of Zhejiang Province, China (Grant No. 2007R0010).

摘要/Abstract

摘要：

We use the mean-field approximation of Dyson-Maleev representation to study an XXZ Heisenberg ferrimagnetic spin chain with single-ion anisotropy. By solving the self-consistent equations with different anisotropies, λ and D respectively, the energy spectrums, internal energy, static susceptibility and specific heat are calculated. Especially, the quantum phase transition of the magnetization plateau induced by single-ion anisotropy D is obtained in the model of the ferrimagnetic spin chain by using Dyson-Maleev mean-field theory.

关键词: Dyson-Maleev mean-field theory, XXZ anisotropy, Single-ion anisotropy, ferrimagnetic spin chain

Abstract:

Key words: Dyson-Maleev mean-field theory, XXZ anisotropy, Single-ion anisotropy, ferrimagnetic spin chain

中图分类号: (Static properties (order parameter, static susceptibility, heat capacities, critical exponents, etc.))

75.40.Cx

75.50.Gg (Ferrimagnetics)

陈宇戈, 李殷翔, 田立君, 陈斌. Dyson-Maleev theory of an X X Z ferrimagnetic spin chain with single-ion anisotropy[J]. 中国物理B, 2018, 27(12): 127501-127501.

Yu-Ge Chen(陈宇戈), Yin-Xiang Li(李殷翔), Li-Jun Tian(田立君), Bin Chen(陈斌). Dyson-Maleev theory of an X X Z ferrimagnetic spin chain with single-ion anisotropy[J]. Chin. Phys. B, 2018, 27(12): 127501-127501.

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Dyson-Maleev theory of an X X Z ferrimagnetic spin chain with single-ion anisotropy

Dyson-Maleev theory of an X X Z ferrimagnetic spin chain with single-ion anisotropy

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