NON-OHMIC BEHAVIOUR IN CDS ACOUSTO-ELECTRIC OSCILLATORS

被引：8

作者：

JANUS, HM

机构：

[1] Physics Laboratory Iii, Technical University of Denmark, Lyngby

来源：

PHYSICA STATUS SOLIDI | 1969年 / 36卷 / 01期

关键词：

D O I：

10.1002/pssb.19690360138

中图分类号：

O469 [凝聚态物理学];

学科分类号：

070205 ;

摘要：

In thin plane parallel photoconducting CdS platelets the current is observed to deviate from the ohmic value also outside the electric field range for net round trip gain in the longitudinal wave configuration. A N‐type negative differential conductivity is observed for pulsed as well as for CW operation. Domain formation may take place and give rise to low‐frequency current oscillations superposed on the well known high‐frequency modes of the acousto‐electric oscillator. The negative differential conductivity is most likely ascribed to field‐dependent free carrier trapping though acousto‐electric effects may also be important. Copyright © 1969 WILEY‐VCH Verlag GmbH & Co. KGaA, Weinheim

引用

页码：365 / &

共 9 条

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