Vacancy defects in as-grown and neutron irradiated GaP studied by positrons

Journal Article · Mon Aug 18 00:00:00 EDT 1986 · Appl. Phys. Lett.; (United States)

DOI:https://doi.org/10.1063/1.97595· OSTI ID:5533894

Dlubek, G; Bruemmer, O; Polity, A

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), Vol. 49:7
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
GALLIUM PHOSPHIDES
PHYSICAL RADIATION EFFECTS
ANNEALING
DOPPLER BROADENING
HIGH TEMPERATURE
IRRADIATION
NEUTRONS
POSITRONS
TRAPPING
VACANCIES
VERY HIGH TEMPERATURE
ANTILEPTONS
ANTIMATTER
ANTIPARTICLES
BARYONS
CRYSTAL DEFECTS
CRYSTAL STRUCTURE
ELEMENTARY PARTICLES
FERMIONS
GALLIUM COMPOUNDS
HADRONS
HEAT TREATMENTS
LEPTONS
LINE BROADENING
NUCLEONS
PHOSPHIDES
PHOSPHORUS COMPOUNDS
PNICTIDES
POINT DEFECTS
RADIATION EFFECTS
360605* - Materials- Radiation Effects