Magnetic studies of persistent photoconductivity in n -Al sub x Ga sub 1 minus x As

Journal Article · Mon Sep 18 04:00:00 EDT 1989 · Physical Review Letters; (USA)

DOI:https://doi.org/10.1103/PhysRevLett.63.1311· OSTI ID:5524333

Khachaturyan, K A; Awschalom, D D; Rozen, J R; Weber, E R ^[1]

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1. IBM Thomas J. Watson Research Center, Post Office Box 218, Yorktown Heights, New York 10598

Low-temperature magnetic susceptibility measurements were made during illumination of {ital n}-Al{sub 2}Ga{sub 1{minus}{ital x}}As with {ital DX} centers to investigate the microscopic origin of persistent photoconductivity. Experiments using a dc SQUID magneto-optic microsusceptometer revealed the change of electronic susceptibility as a function of illumination time and temperature. The results indicate that the {ital DX} center is a paramagnetic donor with one unpaired electron.

• DOE Contract Number: AC03-76SF00098
• OSTI ID: 5524333
• Journal Information: Physical Review Letters; (USA), Journal Name: Physical Review Letters; (USA) Vol. 63:12; ISSN PRLTA; ISSN 0031-9007
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
360603* -- Materials-- Properties
ALUMINIUM ARSENIDES
ALUMINIUM COMPOUNDS
ARSENIC COMPOUNDS
ARSENIDES
DC SYSTEMS
DIAMAGNETISM
ELECTRIC CONDUCTIVITY
ELECTRICAL PROPERTIES
ELECTRONIC EQUIPMENT
ENERGY SYSTEMS
EPITAXY
EQUIPMENT
FLUXMETERS
GALLIUM ARSENIDES
GALLIUM COMPOUNDS
LIGHT TRANSMISSION
MAGNETIC PROPERTIES
MAGNETIC SUSCEPTIBILITY
MAGNETISM
MAGNETO-OPTICAL EFFECTS
MATERIALS
MEASURING INSTRUMENTS
MICROWAVE EQUIPMENT
N-TYPE CONDUCTORS
PARAMAGNETISM
PHOTOCONDUCTIVITY
PHYSICAL PROPERTIES
PNICTIDES
POWER SYSTEMS
SEMICONDUCTOR MATERIALS
SQUID DEVICES
SUPERCONDUCTING DEVICES
TEMPERATURE DEPENDENCE
ULTRALOW TEMPERATURE