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arXiv 0905.1138cond-mat.mes-hall
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弹道体系中二维电子系统间的局域层间隧穿

Local Interlayer Tunneling Between Two-Dimensional Electron Systems in the Ballistic Regime

Katherine Luna, Eun-Ah Kim, Paul Oreto, Steven A. Kivelson, David Goldhaber-Gordon

摘要:

我们研究了虚拟扫描隧道显微镜(VSTM)的理论模型,提出了在双层系统中的层间隧穿局部探测半导体异质结构中的二维电子系统(2DES)的应用。我们认为隧道的情况下,在2DES中的运输是弹道,并显示零偏置异常抑制非常有效的筛选。由于这种异常会使VSTM的数据解释复杂化,因此这一结果对于实现这种显微镜技术的努力是令人鼓舞的。

英文摘要:

We study a theoretical model of virtual scanning tunneling microscopy (VSTM), a proposed application of interlayer tunneling in a bilayer system to locally probe a two-dimensional electron system (2DES) in a semiconductor heterostructure. We consider tunneling for the case where transport in the 2DESs is ballistic, and show that the zero-bias anomaly is suppressed by extremely efficient screening. Since such an anomaly would complicate the interpretation of data from a VSTM, this result is encouraging for efforts to implement such a microscopy technique.

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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