Published 2001 | Version v1
Journal article Metadata-only

Positron annihilation in diamond

Creators

  • 1. Rossijskaya Akademiya Nauk, Moscow (Russian Federation). Inst. Geologii, Geofiziki, Geokhimii, Gornogo Dela
  • 2. Halfgeleiderfysica, Katholieke Univ. Leuven (Belgium)
  • 3. Interfaculty Reactor Inst., Delft Univ. of Technology (Netherlands)
  • 4. TsNIGRI, Moscow (Russian Federation)
  • 5. VNIIAlmaz, Moscow (Russian Federation)
  • 6. KM Diamond Exploration, Vancouver, BC (Canada)
  • 7. Research Center 'Basis', Moscow (Russian Federation)

Description

A summary of dominant defects and of positron behavior in diamonds is given. Results of the combined investigation of different types of natural and synthetic diamond with various types of defects by optical and positron annihilation (PA) spectroscopies are discussed. It is suggested that in as-grown diamonds the positron trapping is dominated by extended defects, such as impurity precipitates, multi-vacancy clusters and fluid microinclusions, whereas the trapping by nitrogen- and nickel-related point defects can be neglected. (orig.)

Additional details

Publishing Information

Journal Title
Materials Science Forum
Journal Volume
363-365
Journal Page Range
p. 40-46
ISSN
0255-5476
CODEN
MSFOEP

Conference

Title
12. international conference on positron annihilation
Acronym
ICPA-12
Dates
6-12 Aug 2000
Place
Munich (Germany)

INIS

Country of Publication
Switzerland
Country of Input or Organization
Switzerland
INIS RN
32031089
Subject category
S36: MATERIALS SCIENCE;
Resource subtype / Literary indicator
Conference
Descriptors DEI
ANNIHILATION; CHEMICAL VAPOR DEPOSITION; DEFECTS; DIAMONDS; DIFFUSION; IMPURITIES; INCLUSIONS; NICKEL ADDITIONS; NITROGEN ADDITIONS; POSITRONS; PRECIPITATION; SYNTHETIC MATERIALS; THIN FILMS; VACANCIES
Descriptors DEC
ALLOYS; ANTILEPTONS; ANTIMATTER; ANTIPARTICLES; CARBON; CHEMICAL COATING; CRYSTAL DEFECTS; CRYSTAL STRUCTURE; DEPOSITION; ELEMENTARY PARTICLES; ELEMENTS; FERMIONS; FILMS; INTERACTIONS; LEPTONS; MATERIALS; MATTER; MINERALS; NICKEL ALLOYS; NONMETALS; PARTICLE INTERACTIONS; POINT DEFECTS; SEPARATION PROCESSES; SURFACE COATING; TRANSITION ELEMENT ALLOYS

Optional Information

Notes
40 refs.