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arXiv 2004.03018cond-mat.mes-hall
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螺线管磁势中的石墨烯盘:没有双缝结构的Aharonov-Bohm效应

Graphene disk in a solenoid magnetic potential: Aharonov-Bohm effect without a two-slit-like setup

Adam Rycerz, Dominik Suszalski

摘要:

Aharonov-Bohm效应允许人们通过在零磁场区域中通过电流来证明磁矢势的物理意义。在标准的({ \em two-slit-like})装置中,用磁通量穿透导电环,观察到电子同时通过两个环臂时的量子干涉。在这里,我们表明,通过分析通过倏逝波的运输,弹道Corbino磁盘在石墨烯受到螺线管磁势可能会表现出的Aharonov-Bohm类型的电导振荡,虽然电流只流过一个单一的导电元件。

英文摘要:

The Aharonov-Bohm effect allows one to demonstrate the physical meaningfulness of magnetic vector potential by passing the current in zero magnetic field regions. In the standard (a {\em two-slit-like}) setup a conducting ring is pierced by magnetic flux and the quantum interference for an electron passing simultaneously the two ring arms is observed. Here we show, by analyzing the transport via evanescent waves, that the ballistic Corbino disk in graphene subjected to a solenoid magnetic potential may exhibit the conductance oscillations of the Aharonov-Bohm kind although the current flows through a single conducting element only.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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