Gate tuneable beamsplitter in ballistic graphene

Peter Rickhaus, Péter Makk, Ming Hao Liu, Klaus Richter, Christian Schönenberger

研究成果: Article同行評審

40 引文 斯高帕斯(Scopus)

摘要

We present a beam splitter in a suspended, ballistic, multiterminal, bilayer graphene device. By using local bottomgates, a p-n interface tilted with respect to the current direction can be formed. We show that the p-n interface acts as a semi-transparent mirror in the bipolar regime and that the reflectance and transmittance of the p-n interface can be tuned by the gate voltages. Moreover, by studying the conductance features appearing in magnetic field, we demonstrate that the position of the p-n interface can be moved by 1 μm. The herein presented beamsplitter device can form the basis of electron-optic interferometers in graphene.

原文English
文章編號251901
期刊Applied Physics Letters
107
發行號25
DOIs
出版狀態Published - 2015 12月 21

All Science Journal Classification (ASJC) codes

  • 物理與天文學(雜項)

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