论文标题
石墨烯超晶格腔中的异常回旋体运动
Anomalous Cyclotron Motion in Graphene Superlattice Cavities
论文作者
论文摘要
我们考虑了通过电子干涉测量法探测的磁铁传输实验中的石墨烯超晶格小型费米子。通过解码观察到的Fabry-Pérot干扰模式以及我们相应的量子传输模拟，我们发现源自超级突变型迷你鞋的狄拉克准粒子不会经过常规的回旋运动，但遵循更细微的轨迹。特别是，低磁场的动力学以特殊的直轨迹段为特征。我们的结果为超晶格小型费米子提供了新的见解，并为电子光学实验中使用周期性潜力开辟了新的可能性。
We consider graphene superlattice miniband fermions probed by electronic interferometry in magneto-transport experiments. By decoding the observed Fabry-Pérot interference patterns together with our corresponding quantum transport simulations, we find that the Dirac quasiparticles originating from the superlattice minibands do not undergo conventional cyclotron motion but follow more subtle trajectories. In particular, dynamics at low magnetic fields is characterized by peculiar, straight trajectory segments. Our results provide new insights into superlattice miniband fermions and open up novel possibilities to use periodic potentials in electron optics experiments.
