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Electron-phonon coupling mechanism in two-dimensional graphite and single-wall carbon nanotubes
| Content Provider | Semantic Scholar |
|---|---|
| Author | Samsonidze, Ge. G. Barros, Eduardo Bedê Saito, Riichiro Jiang, Jie Dresselhaus, Gene Dresselhaus, Mildred S. |
| Copyright Year | 2007 |
| Abstract | The electron-phonon coupling in two-dimensional graphite and metallic single-wall carbon nanotubes is analyzed. The highest-frequency phonon mode at the $K$ point in two-dimensional graphite opens a dynamical band gap that induces a Kohn anomaly. Similar effects take place in metallic single-wall carbon nanotubes that undergo Peierls transitions driven by the highest-frequency phonon modes at the $\ensuremath{\Gamma}$ and $K$ points. The dynamical band gap induces a nonlinear dependence of the phonon frequencies on the doping level and gives rise to strong anharmonic effects in two-dimensional graphite and metallic single-wall carbon nanotubes. |
| Starting Page | 155420 |
| Ending Page | 155420 |
| Page Count | 1 |
| File Format | PDF HTM / HTML |
| DOI | 10.1103/PhysRevB.75.155420 |
| Volume Number | 75 |
| Alternate Webpage(s) | http://flex.phys.tohoku.ac.jp/japanese/lab/nenji07.pdf |
| Alternate Webpage(s) | https://doi.org/10.1103/PhysRevB.75.155420 |
| Language | English |
| Access Restriction | Open |
| Content Type | Text |
| Resource Type | Article |
