PHOTOCURRENT SELF-OSCILLATIONS IN A DIRECT-GAP GAAS-ALAS SUPERLATTICE

Authors
OHTANI N HOSODA M GRAHN HT
Citation
N. Ohtani et al., PHOTOCURRENT SELF-OSCILLATIONS IN A DIRECT-GAP GAAS-ALAS SUPERLATTICE, Applied physics letters, 70(3), 1997, pp. 375-377
Citations number
10
Categorie Soggetti
Physics, Applied
Journal title
Applied physics letters → ACNP
ISSN journal
00036951
Volume
70
Issue
3
Year of publication
1997
Pages
375 - 377
Database
ISI
SICI code
0003-6951(1997)70:3<375:PSIADG>2.0.ZU;2-H
Abstract
Undamped photocurrent self-oscillations have been observed in a direct -gap GaAs-AlAs superlattices. The oscillations in the MHz regime appea r over a wide voltage range, where the time-averaged I-V characteristi c exhibits a strong negative differential conductivity. The frequency distribution is strongly dependent on the applied voltage and the lase r intensity. (C) 1997 American Institute of Physics.