Quantum Hall effect on centimeter scale chemical vapor deposited graphene films

T. Shen,Wei Wu,Qingkai Yu,C. Richter,R. Elmquist,D. Newell,Yong P. Chen

Published 2011 in Applied Physics Letters

ABSTRACT

We report observations of well developed half integer quantum Hall effect on mono layer graphene films of 7 mm × 7 mm in size. The graphene films are grown by chemical vapor deposition on copper, then transferred to SiO2/Si substrates, with typical carrier mobilities ≈4000 cm2/Vs. The large size graphene with excellent quality and electronic homogeneity demonstrated in this work is promising for graphene-based quantum Hall resistance standards and can also facilitate a wide range of experiments on quantum Hall physics of graphene and practical applications exploiting the exceptional properties of graphene.

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