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Effects of strain on electronic properties of graphene
Open accessAbstract
We present first-principles calculations of electronic properties of graphene under uniaxial and isotropic strains, respectively. The semimetallic nature is shown to persist up to a very large uniaxial strain of 30% except a very narrow strain range where a tiny energy gap opens. As the uniaxial strain increases along a certain direction, the Fermi velocity parallel to it decreases quickly and vanishes eventually, whereas the Fermi velocity perpendicular to it increases by as much as 25%. Thus, the low energy properties with small uniaxial strains can be described by the generalized Weyl's equation while massless and massive electrons coexist with large ones. The work function is also predicted to increase substantially as both the uniaxial and isotropic strain increases. Hence, the homogeneous strain in graphene can be regarded as the effective electronic scalar potential.
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Electric Field Effect in Atomically Thin Carbon Films
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The electronic properties of graphene
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Two-dimensional gas of massless Dirac fermions in graphene
Novoselov, K. S., Geim, A. K., Morozov, S. V., Jiang, D., Katsnelson, M. I., Grigorieva, I. V., Dubonos, S. V., & Firsov, A. A. (2005) · Nature · doi:10.1038/nature04233 · Cited by 21,611
Experimental observation of the quantum Hall effect and Berry's phase in graphene
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Graphene-Like Two-Dimensional Materials
Xu, M., Liang, T., Shi, M., & Chen, H. (2013) · Chemical Reviews · doi:10.1021/cr300263a · Cited by 4,531
Raman spectroscopy of graphene-based materials and its applications in related devices
Wu, J.-B., Lin, M.-L., Cong, X., Liu, H.-N., & Tan, P.-H. (2018) · Chemical Society Reviews · doi:10.1039/c6cs00915h · Cited by 2,092
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Structural and Electronic Properties ofTGraphene: A Two-Dimensional Carbon Allotrope with Tetrarings
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Metadata
- Authors
- Choi, S.-M., Jhi, S.-H., & Son, Y.-W.
- Venue
- Physical Review B
- Publisher
- American Physical Society (APS)
- Published
- 2010-02-17
- Volume
- 81
- Issue
- 8
- ISSN
- 1098-0121 (ISSN-L)
- 1550-235X
- OpenAlex
- W2107956010
- Cited by
- 650
- References
- 5
- FWCI
- 21.78
- Type
- journal article
- Language
- en
- Open access
- green
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