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Coherent phonons in alkali metal-dopedC60

 

作者: S. B. Fleischer,   B. Pevzner,   D. J. Dougherty,   H. J. Zeiger,   G. Dresselhaus,   M. S. Dresselhaus,   E. P. Ippen,   A. F. Hebard,  

 

期刊: Applied Physics Letters  （AIP Available online 1997）
卷期: Volume 71, issue 19  

页码: 2734-2736

 

ISSN:0003-6951

 

年代: 1997

 

DOI:10.1063/1.120121

 

出版商: AIP

 

数据来源: AIP

 

摘要:

We report the femtosecond impulsive excitation of coherent phonons in alkali metal-doped fullerenes. These excitations appear as small oscillations of the reflectivity(&Dgr;R/R∼10−7)produced by the pump in an optical pump-probe experiment. The observed phonons include previously unobserved highly damped modes near 150cm−1as well as long-livedAg(1)modes near 490cm−1.©1997 American Institute of Physics.

 

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