Inelastic scattering in a monolayer graphene sheet: A weak-localization study
SCIE
SCOPUS
- Title
- Inelastic scattering in a monolayer graphene sheet: A weak-localization study
- Authors
- Ki, DK; Jeong, D; Choi, JH; Lee, HJ; Park, KS
- Date Issued
- 2008-09
- Publisher
- AMER PHYSICAL SOC
- Abstract
- Charge carriers in a graphene sheet, a single layer of graphite, exhibit distinct characteristics from those in other two-dimensional electronic systems because of their chiral nature. In this paper, we focus on the observation of weak localization in a graphene sheet exfoliated from a piece of natural graphite and nanopatterned into a Hall-bar geometry. Much stronger chiral-symmetry-breaking elastic intervalley scattering in our graphene sheet restores the conventional weak localization. The resulting carrier density and temperature dependence of the phase coherence length reveal that the electron-electron interaction including a direct Coulomb interaction is the main inelastic-scattering factor while electron-hole puddles enhance the inelastic scattering near the Dirac point.
- URI
- https://oasis.postech.ac.kr/handle/2014.oak/12184
- DOI
- 10.1103/PhysRevB.78.125409
- ISSN
- 1098-0121
- Article Type
- Article
- Citation
- PHYSICAL REVIEW B, vol. 78, no. 12, page. 125409 - 125409, 2008-09
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