Observation of sp(3) bonding in tetrahedral amorphous carbon using visibleRaman spectroscopy

Authors
Chen, ZY Zhao, JP Yano, T Ooie, T Yoneda, M Sakakibara, J
Citation
Zy. Chen et al., Observation of sp(3) bonding in tetrahedral amorphous carbon using visibleRaman spectroscopy, J APPL PHYS, 88(5), 2000, pp. 2305-2308
Citations number
20
Categorie Soggetti
Apllied Physucs/Condensed Matter/Materiales Science
Journal title
JOURNAL OF APPLIED PHYSICS
ISSN journal
00218979 → ACNP
Volume
88
Issue
5
Year of publication
2000
Pages
2305 - 2308
Database
ISI
SICI code
0021-8979(20000901)88:5<2305:OOSBIT>2.0.ZU;2-I
Abstract
Visible Raman spectroscopy excited at 532 nm was used to characterize the c arbon bonding in tetrahedral amorphous carbon (ta-C) films. The vibrational modes of the sp(3) bonding in ta-C films were revealed directly. An additi onal Raman band occurring below 1350 cm(-1) was observed. It consisted of t wo features centered on similar to 1270 and similar to 1170 cm(-1), which w ere associated with sp(3) bond stretching. The observed sp(3) related Raman spectrum approached the vibrational density of states of amorphous diamond . (C) 2000 American Institute of Physics. [S0021-8979(00)02118-6].