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

页码：1244 / 1247

页数：4

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