Photocurrent self-oscillations in a direct-gap GaAs-AlAs superlattice
作者:
Naoki Ohtani,
Makoto Hosoda,
Holger T. Grahn,
期刊:
Applied Physics Letters
(AIP Available online 1997)
卷期:
Volume 70,
issue 3
页码: 375-377
ISSN:0003-6951
年代: 1997
DOI:10.1063/1.118417
出版商: AIP
数据来源: AIP
摘要:
Undamped photocurrent self-oscillations have been observed in a direct-gap GaAs-AlAs superlattices. The oscillations in the MHz regime appear over a wide voltage range, where the time-averaged I-V characteristic exhibits a strong negative differential conductivity. The frequency distribution is strongly dependent on the applied voltage and the laser intensity. ©1997 American Institute of Physics.
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