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arXiv 1607.02530cond-mat.mes-hall
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Dirac半金属硼化物中的应变感生赝磁场

Strain-induced pseudomagnetic field in Dirac semimetal borophene

A. D. Zabolotskiy, Yu. E. Lozovik

摘要:

建立了二维硼晶体8-Pmmn硼化物的紧束缚模型。我们确认,晶体主机无质量狄拉克费米子和狄拉克点的对称性保护。应变被引入到模型中,它被证明是诱导一个伪磁场矢量势和标量势。计算了势对应变张量的依赖关系。讨论了赝磁场控制的物理效应。

英文摘要:

A tight-binding model of 8-Pmmn borophene, a two-dimensional boron crystal, is developed. We confirm that the crystal hosts massless Dirac fermions and the Dirac points are protected by symmetry. Strain is introduced into the model, and it is shown to induce a pseudomagnetic field vector potential and a scalar potential. The dependence of the potentials on the strain tensor is calculated. The physical effects controlled by pseudomagnetic field are discussed.

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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