Hidden quantum mirage by negative refraction in semiconductor P-N junctions
Hidden quantum mirage by negative refraction in semiconductor P-N junctions
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DOI：
10.1103/physrevb.94.085408
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发表时间：
2016
期刊：
影响因子：
--
通讯作者：
Kai Chang
中科院分区：
文献类型：
--
作者：
Shu-Hui Zhang;Jia-Ji Zhu;Wen Yang;Hai-Qing Lin;Kai Chang
We predict a robust quantum interference phenomenon in a semiconductor P-N junction: with a local pump on.one side of the junction, the response of a local probe on the other side behaves as if the disturbance emanates not.from the pump but instead from its mirror image about the junction. This phenomenon follows from the matching.of Fermi surfaces of the constituent materials, thus it is robust against the details of the junction (e.g., width,.potential profile, and even disorder), in contrast to the widely studied anomalous focusing caused by negative.refraction. The recently fabricated P-N junctions in 2D semiconductors provide ideal platforms to explore this.phenomenon and its applications to dramatically enhance charge and spin transport as well as carrier-mediated.long-range correlation.
