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Gate tuneable beamsplitter in ballistic graphene

URN to cite this document:
urn:nbn:de:bvb:355-epub-332134
Rickhaus, Peter ; Makk, Péter ; Liu, Ming-Hao ; Richter, Klaus ; Schönenberger, Christian
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arXiv PDF (12.11.2015)
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Date of publication of this fulltext: 27 Jan 2016 13:53



Abstract

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 ...

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