Gap opening in graphene by shear strain
By G. Cocco, E. Cadelano, Luigi Pietro Maria Colombo. 2010
273 citations recorded by the source corpus.
We exploit the concept of strain-induced band-structure engineering in graphene through the calculation of its electronic properties under uniaxial, shear, and combined uniaxial-shear deformations. We show that by combining shear deformations to uniaxial strains it is possible modulate the graphene energy-gap value from zero up to 0.9 eV. Interestingly enough, the use of a shear component allows for a gap opening at moderate absolute deformation, safely smaller than the graphene failure strain.
Subfields: Biomedical Engineering, Materials Chemistry
View Paper: https://www.semanticscholar.org/paper/12303860d2dc0d54965573169c94e8c3eb68c9e5
How researchers see this paper
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In Biomedical Engineering
In Materials Chemistry
- Rui Huang
- Teng Zhang
- Huajian Gao
- Harold S. Park
- Stefano Giordano
- Yong Zhu
- Luigi Pietro Maria Colombo
- J. Bunch
Citations in the corpus
- A review on mechanics and mechanical properties of 2D materials—Graphene and beyond (2016, methodology): “For this reason, other methods have been proposed by using different types of inhomogeneous strain, including shear [197] and periodic ripples [198], to open a bandgap in graphene.”
- Strain engineering of two‐dimensional materials: Methods, properties, and applications (2021, background): “1%, while monolayer graphene can withstand 25% elastic strain.(20) In addition, for traditional strain engineering, only during the process of in-plane epitaxial growth, it can obtain less than 1% of residual strain or prestrain.”
- Nonlinear elasticity in nanostructured materials (2011, background): “Furthermore, it displays many peculiar and intriguing physical properties, most of them affected by in-plane strain (for instance, its zero-gap nature and, therefore, its electron transport features [45]).”
- Tuning the electronic properties of semiconducting transition metal dichalcogenides by applying mechanical strains. (2012, background): “It has been demonstrated both experimentally and theoretically that the optical, phononic, and electronic properties of graphene can be tuned and controlled by varying the strain from ∼12% to 20%.(22,23,25,26) This variation however strongly depends on the direction of the applied strain, as the ban”