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2018 Volume 27 Issue 12
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Yu-Ge Chen, Yin-Xiang Li, Li-Jun Tian, Bin Chen. 2018: Dyson–Maleev theory of an X X Z ferrimagnetic spin chain with single-ion anisotropy, Chinese Physics B, 27(12): 531-536. doi: 10.1088/1674-1056/27/12/127501
Citation: Yu-Ge Chen, Yin-Xiang Li, Li-Jun Tian, Bin Chen. 2018: Dyson–Maleev theory of an X X Z ferrimagnetic spin chain with single-ion anisotropy, Chinese Physics B, 27(12): 531-536. doi: 10.1088/1674-1056/27/12/127501
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Dyson–Maleev theory of an X X Z ferrimagnetic spin chain with single-ion anisotropy

  • College of Sciences, Shanghai University, Shanghai 200444, China

  • Tin Ka-Ping College of Science, University of Shanghai for Science and Technology, Shanghai 200093, China

  • Available Online: 01/01/2018
  • Fund Project: the National Natural Science Foundation of China(Grant 10774035)%the Qianjiang RenCai Program of Zhejiang Province, China(Grant 2007R0010)
  • We use the mean-field approximation of Dyson–Maleev representation to study an X X Z 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.
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通讯作者: 陈斌, bchen63@163.com
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    沈阳化工大学材料科学与工程学院 沈阳 110142

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

  • Available Online: 01/01/2018

Abstract: We use the mean-field approximation of Dyson–Maleev representation to study an X X Z 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.

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