Giant Nonlocality Near the Dirac Point in Graphene
Name
levitov2.pdf
Size
978.69 KB
Format
Adobe PDF
Checksum (MD5)
fa395fd1b8cf10c2d3058290a20c1697
Author(s)
Abanin, D. A.
Morozov, S. V.
Ponomarenko, L. A.
Gorbachev, R. V.
Mayorov, A. S.
Katsnelson, M. I.
Watanabe, K.
Taniguchi, T.
Novoselov, K. S.
Geim, A. K.
Date Issued
April 2011
Journal
Science
Publisher
American Association for the Advancement of Science (AAAS)
Citation
Abanin, D. A., S. V. Morozov, L. A. Ponomarenko, R. V. Gorbachev, A. S. Mayorov, M. I. Katsnelson, K. Watanabe, et al. “Giant Nonlocality Near the Dirac Point in Graphene.” Science 332, no. 6027 (April 14, 2011): 328–330.
Version
Author's final manuscript
Abstract
Transport measurements have been a powerful tool for discovering electronic phenomena in graphene. We report nonlocal measurements performed in the Hall bar geometry with voltage probes far away from the classical path of charge flow. We observed a large nonlocal response near the Dirac point in fields as low as 0.1 tesla, which persisted up to room temperature. The nonlocality is consistent with the long-range flavor currents induced by the lifting of spin/valley degeneracy. The effect is expected to contribute strongly to all magnetotransport phenomena near the neutrality point.
MIT Department
Massachusetts Institute of Technology. Department of Physics
Terms of Use
Creative Commons Attribution-Noncommercial-Share Alike
Persistent DSpace Link
DOI of Published Version
https://doi.org/10.1126/science.1199595
