Conference proceeding
Plasmon exchange model for superconductivity in carbon nanotubes
NANO-SCALE MATERIALS: FROM SCIENCE TO TECHNOLOGY
01 Jan 2006
Abstract
Recent experiments have shown that a single-wall zigzag carbon nanotube can become superconducting at around 15 K. Calculations using the traditional phonon exchange model; however, give a superconducting transition temperature T-C less than 1K. To explain the observed higher critical temperature the plasmon exchange mechanism for superconductivity in nanotubes is explored in this paper. Calculation of the effective interaction between electrons in a nanotube mediated by plasmon exchange shows that this interaction can become attractive. This attractive interaction is then used in the modified Eliashberg theory for strong coupling superconductors to calculate the critical temperature T-C in a nanotube. T-C is found to be sensitively dependent on the dielectric constant of the medium, the effective mass of the electrons and the radius of the nanotube. These results can explain the observed T-C in a nanotube.
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Details
- Title
- Plasmon exchange model for superconductivity in carbon nanotubes
- Creators
- S. M. BoseS. Gayen
- Contributors
- S N Sahu (Editor)R K Choudhury (Editor)P Jena (Editor)
- Publication Details
- NANO-SCALE MATERIALS: FROM SCIENCE TO TECHNOLOGY
- Publisher
- Nova Science Publishers, Inc
- Number of pages
- 7
- Resource Type
- Conference proceeding
- Language
- English
- Academic Unit
- [Retired Faculty]
- Identifiers
- 991019170438704721
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- Materials Science, Multidisciplinary
- Nanoscience & Nanotechnology