COHERENT PHONONS IN ALKALI METAL-DOPED C-60

Authors
FLEISCHER SB PEVZNER B DOUGHERTY DJ ZEIGER HJ DRESSELHAUS G DRESSELHAUS MS IPPEN EP HEBARD AF
Citation
Sb. Fleischer et al., COHERENT PHONONS IN ALKALI METAL-DOPED C-60, Applied physics letters, 71(19), 1997, pp. 2734-2736
Citations number
13
Categorie Soggetti
Physics, Applied
Journal title
Applied physics letters → ACNP
ISSN journal
00036951
Volume
71
Issue
19
Year of publication
1997
Pages
2734 - 2736
Database
ISI
SICI code
0003-6951(1997)71:19<2734:CPIAMC>2.0.ZU;2-H
Abstract
We report the femtosecond impulsive excitation of coherent phonons in alkali metal-doped fullerenes. These excitations appear as small oscil lations of the reflectivity (Delta R/R similar to 10(-7)) produced by the pump in an optical pump-probe experiment. The observed phonons inc lude previously unobserved highly damped modes near 150 cm(-1) as well as long-lived A(g)(1) modes near 490 cm(-1). (C) 1997 American Instit ute of Physics. [S0003-6951(97)00745-6].