论文标题

单轴拉伸应变/应力的磁化石墨烯中Landau水平和De Haas-Van Alphen振荡的调节

Modulation of Landau levels and de Haas-van Alphen oscillation in magnetized graphene by uniaxial tensile strain/ stress

论文作者

Le, Dai-Nam, Le, Van-Hoang, Roy, Pinaki

论文摘要

应变工程技术使我们能够以各种方式改变石墨烯的电子特性。在连续近似中,应变的影响导致伪柱场的出现和调制的费米速度。在这项研究中,我们从理论上研究了线性单轴拉伸应变和/或应力的影响,这使得在磁性石墨烯薄板上,在施加的静电电压的情况下,在磁化石墨烯薄板上使费米速度各向异性。更具体地说,我们分析了费米速度对磁化石墨烯薄片中质量速度和de haas -van Alphen(DHVA)量子振荡的各向异性性质的后果。还讨论了应用菌株方向的影响。

The strain engineering technique allows us to alter the electronic properties of graphene in various ways. Within the continuum approximation, the influences of strain result in the appearance of a pseudo-gauge field and modulated Fermi velocity. In this study, we investigate theoretically the effect of linear uniaxial tensile strain and/or stress, which makes the Fermi velocity anisotropic, on a magnetized graphene sheet in the presence of an applied electrostatic voltage. More specifically, we analyze the consequences of the anisotropic nature of the Fermi velocity on the structure Landau levels and de Haas - van Alphen (dHvA) quantum oscillation in the magnetized graphene sheet. The effect of the direction of the applied strain has also been discussed.

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