| CONDENSED MATTER: ELECTRONIC STRUCTURE, ELECTRICAL, MAGNETIC, AND OPTICAL PROPERTIES |
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Self-Consistent Spin-Wave Analysis of the 1/3 Magnetization Plateau in the Kagome Antiferromagnet |
| Zhong-Chao Wei1, Hai-Jun Liao1**, Jing Chen1, Hai-Dong Xie1, Zhi-Yuan Liu1, Zhi-Yuan Xie2, Wei Li3,4, B. Normand2, Tao Xiang1,5 |
1Institute of Physics, Chinese Academy of Sciences, Beijing 100190
2Department of Physics, Renmin University of China, Beijing 100872
3Department of Physics, Key Laboratory of Micro-Nano Measurement-Manipulation and Physics (Ministry of Education), Beihang University, Beijing 100191
4International Research Institute of Multidisciplinary Science, Beihang University, Beijing 100191
5Collaborative Innovation Center of Quantum Matter, Beijing 100190
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| Cite this article: |
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Zhong-Chao Wei, Hai-Jun Liao, Jing Chen et al 2016 Chin. Phys. Lett. 33 077503 |
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Abstract We propose a modified spin-wave theory to study the 1/3 magnetization plateau of the antiferromagnetic Heisenberg model on the kagome lattice. By the self-consistent inclusion of quantum corrections, the 1/3 plateau is stabilized over a broad range of magnetic fields for all spin quantum numbers $S$. The values of the critical magnetic fields and the widths of the magnetization plateaus are fully consistent with the recent numerical results from exact diagonalization and infinite projected entangled paired states.
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Received: 15 May 2016
Published: 01 August 2016
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| PACS: |
75.10.Jm
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(Quantized spin models, including quantum spin frustration)
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75.30.Ds
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(Spin waves)
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75.30.Kz
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(Magnetic phase boundaries (including classical and quantum magnetic transitions, metamagnetism, etc.))
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