Journal
SCIENCE
Volume 332, Issue 6027, Pages 328-330Publisher
AMER ASSOC ADVANCEMENT SCIENCE
DOI: 10.1126/science.1199595
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Funding
- Engineering and Physical Research Council (UK)
- Royal Society
- U.S. Office of Naval Research
- U.S. Air Force Office of Scientific Research
- Korber Foundation
- EPSRC [EP/G035954/1] Funding Source: UKRI
- Engineering and Physical Sciences Research Council [EP/G035954/1] Funding Source: researchfish
- Grants-in-Aid for Scientific Research [23310096] Funding Source: KAKEN
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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.
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