Phonon and structural changes in deformed Bernal stacked bilayer graphene
Language English Country United States Media print-electronic
Document type Journal Article, Research Support, Non-U.S. Gov't
PubMed
22165946
DOI
10.1021/nl203565p
Knihovny.cz E-resources
- MeSH
- Phonons * MeSH
- Graphite chemistry MeSH
- Membranes, Artificial * MeSH
- Molecular Structure MeSH
- Polymers chemistry MeSH
- Spectrum Analysis, Raman MeSH
- Publication type
- Journal Article MeSH
- Research Support, Non-U.S. Gov't MeSH
- Names of Substances
- Graphite MeSH
- Membranes, Artificial * MeSH
- Polymers MeSH
We present the first Raman spectroscopic study of Bernal bilayer graphene flakes under uniaxial tension. Apart from a purely mechanical behavior in flake regions where both layers are strained evenly, certain effects stem from inhomogeneous stress distribution across the layers. These phenomena such as the removal of inversion symmetry in bilayer graphene may have important implications in the band gap engineering, providing an alternative route to induce the formation of a band gap.
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