Microscopic identification of the F sub 2 sup + -O sup 2 minus center formation in LiF:OH sup minus

Journal Article · Sat Sep 01 04:00:00 EDT 1990 · Physical Review, B: Condensed Matter; (USA)

DOI:https://doi.org/10.1103/PhysRevB.42.4741· OSTI ID:6336985

Courrol, L C; Gomes, L; Ranieri, I M ^[1]

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1. Comissao Nacional de Energia Nuclear, Sao Paulo, Instituto de Pesquisas Energeticas e Nucleares, Caixa Postal 11049, Pinheiros 05499, SP (Brazil)

A model for {ital F}{sub 2}{sup +}-O{sup 2{minus}} formation in irradiated LiF:OH{sup {minus}}, based on a statistical distribution of the defects produced during electron irradiation at {minus}30 {degree}C, has been established. These stabilized centers are formed during the thermal diffusion of the anionic vacancies in competition with the isolated {ital F}{sub 2}{sup +} centers. A critical distance of thirteen lattice parameters suggests that the O{sup 2{minus}}-{alpha} dipole is the precursor entity responsible for {ital F}{sub 2}{sup +}-O{sup 2{minus}} creation.

• OSTI ID: 6336985
• Journal Information: Physical Review, B: Condensed Matter; (USA), Journal Name: Physical Review, B: Condensed Matter; (USA) Vol. 42:7; ISSN 0163-1829; ISSN PRBMD
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
360605* -- Materials-- Radiation Effects
ALKALI METAL COMPOUNDS
COLOR CENTERS
CRYSTAL DEFECTS
CRYSTAL STRUCTURE
FLUORIDES
FLUORINE COMPOUNDS
HALIDES
HALOGEN COMPOUNDS
HYDROXYL RADICALS
LATTICE PARAMETERS
LITHIUM COMPOUNDS
LITHIUM FLUORIDES
LITHIUM HALIDES
MICROSTRUCTURE
PHYSICAL RADIATION EFFECTS
POINT DEFECTS
RADIATION EFFECTS
RADICALS
VACANCIES