PICOSECOND OPTICAL STUDIES OF AMORPHOUS DIAMOND AND DIAMOND-LIKE CARBON - THERMAL-CONDUCTIVITY AND LONGITUDINAL SOUND-VELOCITY

Authors
MORATH CJ MARIS HJ CUOMO JJ PAPPAS DL GRILL A PATEL VV DOYLE JP SAENGER KL
Citation
Cj. Morath et al., PICOSECOND OPTICAL STUDIES OF AMORPHOUS DIAMOND AND DIAMOND-LIKE CARBON - THERMAL-CONDUCTIVITY AND LONGITUDINAL SOUND-VELOCITY, Journal of applied physics, 76(5), 1994, pp. 2636-2640
Citations number
29
Categorie Soggetti
Physics, Applied
Journal title
Journal of applied physics → ACNP
ISSN journal
00218979
Volume
76
Issue
5
Year of publication
1994
Pages
2636 - 2640
Database
ISI
SICI code
0021-8979(1994)76:5<2636:POSOAD>2.0.ZU;2-1
Abstract
A picosecond pump-probe technique is used to measure the room-temperat ure thermal conductivity kappa and longitudinal sound velocity c(l) of amorphous diamond (a-D) and diamondlike carbon (DLC) thin films. Both kappa and c(l) were found to decrease with film hydrogen content. Dep ending on the film deposition technique, kappa is in the range 5-10 X 10(-2) W cm-1 K-1 for a-D, and 3-10 X 10(-3) W cm-1 K-1 for DLC. Value s of c(l) were found to be in the range 14-18 X 10(5) cm s-1 for a-D, and 6-9 X 10(5) cm s-1 for DLC.