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A study of two-dimensional magnetic polaron

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Abstract

By using the variational method and anneal simulation, we study in this paper the self-trapped magnetic polaron (STMP) in two-dimensional anti-ferromagnetic material and the bound magnetic polaron (BMP) in ferromagnetic material. Schwinger angular momentum theory is applied to changing the problem into a coupling problem of carriers and two types of Bosons. Our calculation shows that there are single-peak and multi-peak structures in the two-dimensional STMP. For the ferromagnetic material, the properties of the two-dimensional BMP are almost the same as that in one-dimensional case; but for the anti-ferromagnetic material, the two-dimensional STMP structure is much richer than the one-dimensional case.

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Authors and Affiliations

  1. School of Science, Southwest University of Science and Technology, Mianyang, 621010, China

    Liu Tao, Zhang Huaihong, Feng Mang & Wang Kelin

  2. Wuhan Institute of Physics and Mathematics, Chinese Academy of Sciences, Wuhan, 430070, China

    Feng Mang

  3. Department of Modern Physics, University of Science and Technology of China, Hefei, 230026, China

    Wang Kelin

Authors
  1. Liu Tao
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  2. Zhang Huaihong
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  3. Feng Mang
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  4. Wang Kelin
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Correspondence to Liu Tao.

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Liu, T., Zhang, H., Feng, M. et al. A study of two-dimensional magnetic polaron. SCI CHINA SER G 49, 421–429 (2006). https://doi.org/10.1007/s11433-006-0421-8

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  • DOI: https://doi.org/10.1007/s11433-006-0421-8

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