447 citations · 1.8k across the 25 of their papers we have counts for
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Observation of even denominator fractional quantum Hall effect in suspended bilayer graphene
Dong-Keun Ki, Vladimir I. Fal'ko, Dmitry A. Abanin +1
We investigate low-temperature magneto-transport in recently developed, high-quality multi-terminal suspended bilayer graphene devices, enabling the independent measurement of the…
A ballistic pn junction in suspended graphene with split bottom gates
Anya L. Grushina, Dong-Keun Ki, Alberto F. Morpurgo
We have developed a process to fabricate suspended graphene devices with local bottom gates, and tested it by realizing electrostatically controlled pn junctions on a suspended gra…
Identification of a strong contamination source for graphene in vacuum systems
Christophe Caillier, Dong-Keun Ki, Yuliya Lisunova +3
To minimize parasitic doping effects caused by uncontrolled material adsorption, graphene is often investigated under vacuum. Here we report an entirely unexpected phenomenon occur…