Journal
PHYSICAL REVIEW LETTERS
Volume 105, Issue 24, Pages -Publisher
AMER PHYSICAL SOC
DOI: 10.1103/PhysRevLett.105.246601
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Funding
- NSF CAREER [DMR/0748910, NSF/ECCS 0926056]
- ONR [N00014-09-1-0724]
- FENA Focus Center
- NHMFL UCGP [5068]
- NSF [DMR-0654118]
- State of Florida
- DOE
- Div Of Electrical, Commun & Cyber Sys
- Directorate For Engineering [0926056] Funding Source: National Science Foundation
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We report pronounced magnetoconductance oscillations observed on suspended bilayer and trilayer graphene devices with mobilities up to 270000 cm(2)/V s. For bilayer devices, we observe conductance minima at all integer filling factors v between 0 and -8, as well as a small plateau at v = 1/3. For trilayer devices, we observe features at v = -1, -2, -3, and -4, and at v similar to 0.5 that persist to 4.5 K at B 8 T. All of these features persist for all accessible values of V-g and B, and could suggest the onset of symmetry breaking of the first few Landau levels and fractional quantum Hall states.
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