Published June 1977 | Version v1
Journal article

ESR studies of diamond powders

  • 1. University of the Witwatersrand, Johannesburg (South Africa). Dept. of Physics

Description

The ESR spectrum of two defect centres were observed in finely ground diamond powders (0.5 to 30 μm size). The one centre has been seen before in irradiated and annealed single crystals of natural diamonds (the O1 centre) while the second one has only been seen in synthetic diamonds grown from a nickel-iron melt and is only observable below 250 K. From the study of the variation of the intensity of these lines with size of particles it could be concluded that the O1 centre lies just beneath the surface of these particles and the S centre at least 0.5 μm below the surface. (author)

Additional details

Identifiers

Publishing Information

Journal Title
Solid State Communications
Journal Volume
22
Journal Issue
12
Series
Solid State Commun.
Journal Page Range
767-770
ISSN
0038-1098

INIS

Country of Publication
United Kingdom
Country of Input or Organization
United Kingdom
INIS RN
8330160
Subject category
S36: MATERIALS SCIENCE;
Descriptors DEI
CRYSTAL DEFECTS; DIAMONDS; ELECTRON SPIN RESONANCE; PARTICLE SIZE; PHYSICAL RADIATION EFFECTS; POWDERS; SPECTRA
Descriptors DEC
CARBON; CRYSTAL STRUCTURE; ELEMENTS; MAGNETIC RESONANCE; MINERALS; NONMETALS; RADIATION EFFECTS; RESONANCE; SIZE

Optional Information

Notes
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