Magnetophonon shakeup in a Wigner crystal: Applications to tunneling spectroscopy in the quantum Hall regime.
Magnetophonon shakeup in a Wigner crystal: Applications to tunneling spectroscopy in the quantum Hall regime.
复制标题
维格纳晶体中的磁声子震动：在量子霍尔体系中隧道光谱的应用。
作者：
Johansson;Kinaret
我们计算了两个平行二维电子系统在强垂直磁场中的隧道电流。我们用维格纳晶体建立了强相关电子系统的模型，并用磁声子描述了它们的低能动力学。隧穿电子震动磁声子，导致电导峰值偏离零电压，与无磁场情况相比，电导峰值变宽。我们的结果在定量上与最近的实验非常一致
We calculate the tunnel current between two parallel two-dimensional electron systems in a strong perpendicular magnetic field. We model the strongly correlated electron systems by Wigner crystals, and describe their low-energy dynamics in terms of magnetophonons. A tunneling electron shakes up magnetophonons, which results in a conductance peak that is displaced away from zero voltage and broadened compared with the case of no magnetic field. Our results are in very good quantitative agreement with recent experiments