PHOTOINDUCED CHARGE-DENSITY-WAVE CONDUCTION

被引：5
|
作者：
GAAL, R
DONOVAN, S
SORLEI, Z
MIHALY, G
机构：
[1] Central Research Institute for Physics, H1525 Budapest
来源：
PHYSICAL REVIEW LETTERS | 1992年 / 69卷 / 08期
关键词：
D O I：
10.1103/PhysRevLett.69.1244
中图分类号：
O4 [物理学];
学科分类号：
0702 ;
摘要：
The blue bronze K0.3MoO3 has been irradiated by a pulsed infrared laser beam with a photon energy corresponding to the single-particle gap. In the experiments, performed at T = 4.2 K, no direct photocurrent due to normal carriers was observable; however, we found a unique phenomenon, photoinduced collective electron transport. We argue that the electrostatic screening by the optically excited single electrons initiates the sliding of the charge-density-wave condensate, and it is this collective motion which dominates the photocurrent.
引用
收藏
页码：1244 / 1247
页数：4
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