Corbino几何中动态伪规范场和蛇态的输运
Transport through dynamic pseudo-gauge fields and snake states in a Corbino geometry
摘要：
我们提出了一个Corbino盘几何的石墨烯膜下的平面应变变形作为一个方便的路径来检测伪磁场和电场通过电子传输。三重对称的伪磁场作为角度的函数改变符号六次，导致连接内部和外部接触的蛇态和接近量子化的输运。对于在AC门控时获得的动态应变，系统支持AC伪电场，在伪磁场存在的情况下，AC伪电场经由伪霍尔效应在没有外部电压的情况下产生净电子充电电流。
英文摘要：
We propose a Corbino-disk geometry of a graphene membrane under out-of-plane strain deformations as a convenient path to detect pseudo-magnetic and electric fields via electronic transport. The three-fold symmetric pseudo-magnetic field changes sign six times as function of angle, leading to snake states connecting the inner and outer contacts and to nearly quantized transport. For dynamical strain obtained upon AC gating, the system supports an AC pseudo-electric field which, in the presence of the pseudo-magnetic field, produces a net electronic charge current in the absence of an external voltage, via a pseudo-Hall effect.
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