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A study of two-dimensional magnetic polaron

机译:二维磁极化子的研究

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摘要

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.
机译:通过使用变分方法和退火模拟,我们研究了二维反铁磁材料中的自陷磁极化子(STMP)和铁磁材料中的束缚磁极化子(BMP)。 Schwinger角动量理论被用于将问题变成载体和两种玻色子的耦合问题。我们的计算表明,二维STMP中存在单峰和多峰结构。对于铁磁材料,二维BMP的特性几乎与一维情况相同。但是对于反铁磁材料,二维的STMP结构比一维的情况要丰富得多。

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