2024-03-28T21:44:06Zhttp://digital.csic.es/dspace-oai/requestoai:digital.csic.es:10261/981162016-02-18T03:06:12Zcom_10261_115com_10261_3col_10261_368
Spectroscopic characterization of Stone-Wales defects in nanotubes
Miyamoto, Yoshiyuki
Rubio, Angel
Berber, Savas
Yoon, Mina
Tománek, David
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.
2014-06-10T11:13:40Z
2014-06-10T11:13:40Z
2004-03
artículo
Physical Review B 69: 121413(R) (2004)
1098-0121
http://hdl.handle.net/10261/98116
10.1103/PhysRevB.69.121413
1550-235X
eng
Publisher's version
http://dx.doi.org/10.1103/PhysRevB.69.121413
openAccess
American Physical Society