Journal
PHYSICAL REVIEW LETTERS
Volume 109, Issue 3, Pages -Publisher
AMER PHYSICAL SOC
DOI: 10.1103/PhysRevLett.109.036601
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Funding
- PRESTO, the Japan Science and Technology Agency
- MEXT, CREST, the Japan Science and Technology Agency
- Project for Developing Innovation Systems of MEXT
- Grants-in-Aid for Scientific Research [23710155, 23310096, 23246116] Funding Source: KAKEN
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We report magnetotransport measurements in ballistic graphene mesoscopic wires where the charge carrier mean free path is comparable to the wire width W. Magnetoresistance curves show characteristic peak structures where the peak field scales with the ratio of cyclotron radius R-c and wire width W as W/R-c = 0.9 +/- 0.1, due to diffusive boundary scattering. The obtained proportionality constant between Rc and W differs from that of a classical semiconductor two-dimensional electron system in which W/R-c = 0.55.
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