石墨烯双分子层中三角翘曲对反常拉比振荡的影响

Vipin Kumar, Enamullah, G. Setlur
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引用次数: 0

摘要

在单层石墨烯中,最近预测的异常拉比频率与施加的泵浦场强度呈线性变化,而在双层石墨烯中,它与强度的平方成正比。在双层石墨烯中,当考虑到三角翘曲效应时,反常拉比频率除了在原点处的最小值外,还显示出一个非平凡的最小值(相对于强度)。在E. McCann等人的一项开创性工作中,这个非平凡的最小值出现在应用场的强度值上,该强度值对应于费米表面腿袋发展的动量值的2倍。理论物理。[j].科学通报,2004,(3)。此后,反常拉比频率随外加磁场强度线性变化。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Effect of trigonal warping on anomalous Rabi oscillations in graphene bilayer
In single layer graphene, the recently predicted anomalous Rabi frequency varies linearly with the intensity of applied pump field whereas in bilayer graphene it is proportional to the square of the intensity. In bilayer graphene, when the trigonal warping effect is taken in to account, the anomalous Rabi frequency shows a non-trivial minimum (versus intensity) in addition to the trivial minimum at origin. This non-trivial minimum occurs at the value of intensity of the applied field which corresponds to 2 times the value of the momentum where the leg pockets of the Fermi surface develops, described in a pioneering work of E. McCann et al. [Eup. Phys. J. Special Topics 148, 91 (2007)]. Thereafter the anomalous Rabi frequency varies linearly with the intensity of applied field.
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