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Título: | Spectroscopic characterization of Stone-Wales defects in nanotubes |
Autor: | Miyamoto, Yoshiyuki; Rubio, Angel CSIC ORCID; Berber, Savas; Yoon, Mina; Tománek, David | Fecha de publicación: | mar-2004 | Editor: | American Physical Society | Citación: | Physical Review B 69: 121413(R) (2004) | Resumen: | We combined resonant photoabsorption and vibration spectroscopy with scanning tunneling microscopy (STM) to unambiguously identify the presence of Stone-Wales (SW) defects in carbon and boron nitride nanotubes. Based on extensive time-dependent ab initio density functional calculations, we propose to resonantly photoexcite SW defects in the infrared and ultraviolet regime as a means of their identification. Onset of nonradiative decay to a local defect vibration with a frequency of 1962 cm-1 serves as a fingerprint of such defects in carbon nanotubes. The bias dependence of the STM images shows distinct features associated with the presence of SW defects. | Versión del editor: | http://dx.doi.org/10.1103/PhysRevB.69.121413 | URI: | http://hdl.handle.net/10261/98116 | DOI: | 10.1103/PhysRevB.69.121413 | ISSN: | 1098-0121 | E-ISSN: | 1550-235X |
Aparece en las colecciones: | (CFM) Artículos |
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Spectroscopic characterization of Stone.pdf | 253,73 kB | Adobe PDF | Visualizar/Abrir |
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