SELECTIVE PHOTOCONDUCTIVITY INDUCED IN PBTE(GA) BY A LOCAL PHONON MODE

Authors
BELOGOROKHOV AI IVANCHIK II PONOMAREV SV KHOKHLOV DR SLYNKO EI
Citation
Ai. Belogorokhov et al., SELECTIVE PHOTOCONDUCTIVITY INDUCED IN PBTE(GA) BY A LOCAL PHONON MODE, JETP letters, 63(5), 1996, pp. 353-357
Citations number
8
Categorie Soggetti
Physics
Journal title
JETP letters → ACNP
ISSN journal
00213640
Volume
63
Issue
5
Year of publication
1996
Pages
353 - 357
Database
ISI
SICI code
0021-3640(1996)63:5<353:SPIIPB>2.0.ZU;2-V
Abstract
Selective photoconductivity at frequency omega = 155 cm(-1) was discov ered in PbTe(Ga) narrow-gap semiconductors at liquid-nitrogen temperat ures. The corresponding energy is much lower than all characteristic e nergies of the electronic spectrum of the semiconductor. The effect is attributed to optical excitation of a local vibrational mode of an im purity center leading to delocalization of the electrons. (C) 1996 Ame rican Institute of Physics.