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Ultrahigh electron mobility in suspended graphene

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Bolotin, K.I., Sikes, K.J., Jiang, Z., Klima, M., Fudenberg, G., Hone, J., Kim, P., Stormer, H.L.·2008·Solid State Communications

Abstract

Abstract We have achieved mobilities in excess of 200,000 cm2 V −1 s−1 at electron densities of ∼2 ×1011 cm−2 by suspending single layer graphene. Suspension ∼150 nm above a Si/SiO2 gate electrode and electrical contacts to the graphene was achieved by a combination of electron beam lithography and etching. The specimens were cleaned in situ by employing current-induced heating, directly resulting in a significant improvement of electrical transport. Concomitant with large mobility enhancement, the widths of the characteristic Dirac peaks are reduced by a factor of 10 compared to traditional, nonsuspended devices. This advance should allow for accessing the intrinsic transport properties of graphene.

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Metadata

Authors
Bolotin, K. I., Sikes, K. J., Jiang, Z., Klima, M., Fudenberg, G., Hone, J., Kim, P., & Stormer, H. L.
Venue
Solid State Communications
Publisher
Elsevier BV
Published
2008-06
Volume
146
Issue
9-10
Pages
351-355
ISSN
0038-1098 (ISSN-L)
OpenAlex
W1991859775
Cited by
8,057
References
3
FWCI
143.15
Type
journal article
Language
en
Open access
green

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CoChat. (2026). Citation check: Ultrahigh electron mobility in suspended graphene. https://app.cochat.ai/papers/10.1016/j.ssc.2008.02.024
The paper
Bolotin, K. I., Sikes, K. J., Jiang, Z., Klima, M., Fudenberg, G., Hone, J., Kim, P., & Stormer, H. L. (2008). Ultrahigh electron mobility in suspended graphene. Solid State Communications. https://doi.org/10.1016/j.ssc.2008.02.024

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Contains information from the Semantic Scholar Academic Graph Datasets, made available under the ODC Attribution License (ODC-BY 1.0).

Semantic Scholar’s data is described in: Kinney, R., et al. (2023). The Semantic Scholar Open Data Platform. arXiv:2301.10140.