Vacancy defects in as-grown and neutron irradiated GaP studied by positrons
Journal Article
·
· Appl. Phys. Lett.; (United States)
Positron lifetime and Doppler-broadening measurements have been used to study vacancy defects in n-italic-type GaP. Vacancies in the P sublattice with a concentration of some 10/sup 17/ cm/sup -3/ were observed in as-grwon GaP. The vacancies disappear during annealing at 500--800 /sup 0/C. In neutron-irradiated GaP positrons are trapped by Ga vacancies which anneal out in two stages situated at 300--550 /sup 0/C and 550--700 /sup 0/C.
- Research Organization:
- Sektion Physik, Martin--Luther-Universitaet, DDR-4020 Halle, german Democratic Republic
- OSTI ID:
- 5533894
- Journal Information:
- Appl. Phys. Lett.; (United States), Journal Name: Appl. Phys. Lett.; (United States) Vol. 49:7; ISSN APPLA
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
36 MATERIALS SCIENCE
360605* -- Materials-- Radiation Effects
ANNEALING
ANTILEPTONS
ANTIMATTER
ANTIPARTICLES
BARYONS
CRYSTAL DEFECTS
CRYSTAL STRUCTURE
DOPPLER BROADENING
ELEMENTARY PARTICLES
FERMIONS
GALLIUM COMPOUNDS
GALLIUM PHOSPHIDES
HADRONS
HEAT TREATMENTS
HIGH TEMPERATURE
IRRADIATION
LEPTONS
LINE BROADENING
NEUTRONS
NUCLEONS
PHOSPHIDES
PHOSPHORUS COMPOUNDS
PHYSICAL RADIATION EFFECTS
PNICTIDES
POINT DEFECTS
POSITRONS
RADIATION EFFECTS
TRAPPING
VACANCIES
VERY HIGH TEMPERATURE
360605* -- Materials-- Radiation Effects
ANNEALING
ANTILEPTONS
ANTIMATTER
ANTIPARTICLES
BARYONS
CRYSTAL DEFECTS
CRYSTAL STRUCTURE
DOPPLER BROADENING
ELEMENTARY PARTICLES
FERMIONS
GALLIUM COMPOUNDS
GALLIUM PHOSPHIDES
HADRONS
HEAT TREATMENTS
HIGH TEMPERATURE
IRRADIATION
LEPTONS
LINE BROADENING
NEUTRONS
NUCLEONS
PHOSPHIDES
PHOSPHORUS COMPOUNDS
PHYSICAL RADIATION EFFECTS
PNICTIDES
POINT DEFECTS
POSITRONS
RADIATION EFFECTS
TRAPPING
VACANCIES
VERY HIGH TEMPERATURE