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arXiv 0910.5352cond-mat.mtrl-scicond-mat.mes-hall
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具有内禀和Rashba自旋-轨道相互作用的蜂窝晶格中Dirac费米子系统的自旋霍尔效应

Spin Hall effect in a system of Dirac fermions in the honeycomb lattice with intrinsic and Rashba spin-orbit interaction

A. Dyrdal, V. K. Dugaev, J. Barnas

摘要:

我们考虑了石墨烯晶格中无质量狄拉克费米子系统的自旋霍尔效应。两种类型的自旋-轨道相互作用,有关的石墨烯晶格,被考虑在内-的内在和Rashba条款。在理想晶格的假设下,计算了自旋霍尔电导率的拓扑贡献。当这两种相互作用存在时,它们的相互作用被证明会导致自旋霍尔电导率对费米能级的依赖性的一些特殊性。

英文摘要:

We consider spin Hall effect in a system of massless Dirac fermions in a graphene lattice. Two types of spin-orbit interaction, pertinent to the graphene lattice, are taken into account - the intrinsic and Rashba terms. Assuming perfect crystal lattice, we calculate the topological contribution to spin Hall conductivity. When both interactions are present, their interplay is shown to lead to some peculiarities in the dependence of spin Hall conductivity on the Fermi level.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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