Coulomb drag and magnetotransport in graphene double layers
SCIE
SCOPUS
- Title
- Coulomb drag and magnetotransport in graphene double layers
- Authors
- KIM, SEYOUNG
- Date Issued
- 2012-08
- Publisher
- Elsevier BV
- Abstract
- We review the fabrication and key transport properties of graphene double layers, consisting of two graphene monolayers placed in close proximity, independently contacted, and separated by an ultrathin dielectric. We outline a simple band structure model relating the layer densities to the applied gate and inter-layer biases, and show that calculations and experimental results are in excellent agreement both at zero and in high magnetic fields. Coulomb drag measurements, which probe the electron-electron scattering between the two layers reveal two distinct regime: (i) diffusive drag at elevated temperatures, and (ii) mesoscopic fluctuation-dominated drag at low temperatures. We discuss the Coulomb drag results within the framework of existing theories. (c) 2012 Elsevier Ltd. All rights reserved.
- URI
- https://oasis.postech.ac.kr/handle/2014.oak/103390
- DOI
- 10.1016/j.ssc.2012.04.032
- ISSN
- 0038-1098
- Article Type
- Article
- Citation
- Solid State Communications, vol. 152, no. 15, page. 1283 - 1288, 2012-08
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