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Título: | Anderson localization in carbon nanotubes: Defect density and temperature effects |
Autor: | Biel, Blanca; García-Vidal, F. J.; Rubio, Angel CSIC ORCID; Flores, Fernando | Fecha de publicación: | 2005 | Editor: | American Physical Society | Citación: | Physical Review Letters 95: 266801 (2005) | Resumen: | The role of irradiation induced defects and temperature in the conducting properties of single-walled (10,10) carbon nanotubes has been analyzed by means of a first-principles approach. We find that divacancies modify strongly the energy dependence of the differential conductance, reducing also the number of contributing channels from two (ideal) to one. A small number of divacancies (5-9) brings up strong Anderson localization effects and a seemly universal curve for the resistance as a function of the number of defects. It is also shown that low temperatures, about 15-65 K, are enough to smooth out the fluctuations of the conductance without destroying the exponential dependence of the resistivity as a function of the tube length. © 2005 The American Physical Society. | Versión del editor: | http://dx.doi.org/10.1103/PhysRevLett.95.266801 | URI: | http://hdl.handle.net/10261/98008 | DOI: | 10.1103/PhysRevLett.95.266801 | Identificadores: | doi: 10.1103/PhysRevLett.95.266801 issn: 0031-9007 e-issn: 1079-7114 |
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Anderson Localization in Carbon.pdf | 405,34 kB | Adobe PDF | Visualizar/Abrir |
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