TIME-OF-FLIGHT SPECTROSCOPY OF ELECTRON-TRANSPORT IN SUPERLATTICES - FROM BAND TRANSPORT TO STARK LOCALIZATION

被引：9

作者：

COHEN, G

BARJOSEPH, I

机构：

[1] Department of Physics, Weizmann Institute of Science

来源：

PHYSICAL REVIEW B | 1992年 / 46卷 / 15期

关键词：

D O I：

10.1103/PhysRevB.46.9857

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Using a picosecond optical pump and probe technique we monitor the time it takes for carriers to leave a GaAs/AlxGa1-xAs superlattice at various electric fields. We find that when a Stark ladder is optically observed, carriers escape more slowly out of the superlattice than when the absorption spectrum of a miniband is seen.

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页码：9857 / 9860

页数：4

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