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arXiv 0810.3802cond-mat.mes-hall
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具有巨持续电流的U型介观振子

Mesoscopic oscillator in U-shape with giant persistent current

Yanzhang He, Chengguang Bao

摘要:

提出并研究了一种U型介观振子。利用一个磁通量和一个约束势,包含在振荡器中的电子已经被初始地定域,并且由此存储了一定量的能量。然后,电势和通量的突然消除可以引起初始电流,该初始电流启动电子从U振荡器的一端到相对端的周期性运动,并且重复。周期是可调整的。与周期运动相关的电流可以被调节得非常强(比如,比通常的Aharonov-Bohm振荡的电流大两个数量级以上)。给出了相关的理论和数值结果。

英文摘要:

A mesoscopic oscillator in U-shape has been proposed and studied. Making use of a magnetic flux together with a potential of confinement, the electron contained in the oscillator has been localized initially and an amount of energy has been thereby stored. Then a sudden cancellation of both the potential and the flux may cause an initial current which initiates a periodic motion of the electron from one end of the U-oscillator to the opposite end, and repeatedly. The period is adjustable. The current associated with the periodic motion can be tuned very strong (say, more than two orders larger than the current of the usual Aharonov-Bohm oscillation). Related theory and numerical results are presented.

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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