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Title: Formation of defect clusters in electron-irradiated diamond at 16 and 87 K

Abstract

A type IIa natural diamond was irradiated with 300 kV electrons at 16 and 87 K. Transmission electron microscopy and electron energy-loss spectroscopy were employed to investigate the phase stability of diamond under electron irradiation. At both temperatures, the diamond structure was found to be stable, and the formation of defect clusters was observed. The present results in comparison to previous work on ion implantation indicate that displacement cascade damage is a prerequisite for irradiation-induced phase transformation from diamond to amorphous carbon or graphite. The temperature dependence of the cluster size suggests that interstitials are thermally mobile above 50 K.

Authors:
; ;  [1]
  1. Center for Materials Science, Los Alamos National Laboratory, Los Alamos, New Mexico (USA)
Publication Date:
OSTI Identifier:
5055248
Resource Type:
Journal Article
Journal Name:
Applied Physics Letters; (United States)
Additional Journal Information:
Journal Volume: 59:20; Journal ID: ISSN 0003-6951
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE; DIAMONDS; PHYSICAL RADIATION EFFECTS; CRYSTAL-PHASE TRANSFORMATIONS; ELECTRON BEAMS; KEV RANGE 100-1000; MOBILITY; PHASE STABILITY; POINT DEFECTS; VERY LOW TEMPERATURE; BEAMS; CARBON; CRYSTAL DEFECTS; CRYSTAL STRUCTURE; ELEMENTAL MINERALS; ELEMENTS; ENERGY RANGE; KEV RANGE; LEPTON BEAMS; MINERALS; NONMETALS; PARTICLE BEAMS; PHASE TRANSFORMATIONS; RADIATION EFFECTS; STABILITY; 360605* - Materials- Radiation Effects; 360602 - Other Materials- Structure & Phase Studies

Citation Formats

Koike, J, Mitchell, T E, and Parkin, D M. Formation of defect clusters in electron-irradiated diamond at 16 and 87 K. United States: N. p., 1991. Web. doi:10.1063/1.105938.
Koike, J, Mitchell, T E, & Parkin, D M. Formation of defect clusters in electron-irradiated diamond at 16 and 87 K. United States. https://doi.org/10.1063/1.105938
Koike, J, Mitchell, T E, and Parkin, D M. Mon . "Formation of defect clusters in electron-irradiated diamond at 16 and 87 K". United States. https://doi.org/10.1063/1.105938.
@article{osti_5055248,
title = {Formation of defect clusters in electron-irradiated diamond at 16 and 87 K},
author = {Koike, J and Mitchell, T E and Parkin, D M},
abstractNote = {A type IIa natural diamond was irradiated with 300 kV electrons at 16 and 87 K. Transmission electron microscopy and electron energy-loss spectroscopy were employed to investigate the phase stability of diamond under electron irradiation. At both temperatures, the diamond structure was found to be stable, and the formation of defect clusters was observed. The present results in comparison to previous work on ion implantation indicate that displacement cascade damage is a prerequisite for irradiation-induced phase transformation from diamond to amorphous carbon or graphite. The temperature dependence of the cluster size suggests that interstitials are thermally mobile above 50 K.},
doi = {10.1063/1.105938},
url = {https://www.osti.gov/biblio/5055248}, journal = {Applied Physics Letters; (United States)},
issn = {0003-6951},
number = ,
volume = 59:20,
place = {United States},
year = {1991},
month = {11}
}