ELECTRON-PHONON RELAXATION DYNAMICS OF NIOBIUM METAL AS A FUNCTION OFTEMPERATURE

Authors
MIHAILIDI M XING QR YOO KM ALFANO RR
Citation
M. Mihailidi et al., ELECTRON-PHONON RELAXATION DYNAMICS OF NIOBIUM METAL AS A FUNCTION OFTEMPERATURE, Physical review. B, Condensed matter, 49(5), 1994, pp. 3207-3212
Citations number
15
Categorie Soggetti
Physics, Condensed Matter
Journal title
Physical review. B, Condensed matter → ACNP
ISSN journal
01631829
Volume
49
Issue
5
Year of publication
1994
Pages
3207 - 3212
Database
ISI
SICI code
0163-1829(1994)49:5<3207:ERDONM>2.0.ZU;2-I
Abstract
The electron-phonon relaxation process in niobium has been measured wi th pump-probe technique and compared with theory for ambient (initial) temperatures ranging from 292 to 7 K. The time it takes for the elect rons to thermalize with phonons was found to decrease from 370 fs at 2 92 K to 250 fs at 7 K, while the electron-phonon coupling parameter g decreases with decreasing temperature.