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Full Record Details
Persistent URL
http://purl.org/net/epubs/work/1132
Record Status
Checked
Record Id
1132
Title
Neutron Compton scattering from amorphous hydrogenated carbon
Contributors
J Mayers (SERC Rutherford Appleton Lab.)
,
TM Burke (SERC Rutherford Appleton Lab.)
,
RJ Newport (SERC Rutherford Appleton Lab.)
Abstract
Neutron Compton scattering (NCS) measurements have been used to determine the kinetic energies of atoms in samples of amorphous hydrogenated carbon (a-C:H), graphite and diamond at momentum transfers between 40 and 300 AA-1. We find that the kinetic energy of individual carbon atoms is the same within statistical error in a-C:H and graphite but significantly higher in diamond. The kinetic energy of the hydrogen in a-C:H is lower than expected from previous spectroscopic measurements and we infer that the sample contained molecular hydrogen. Observed deviations from the impulse approximation are consistent with theoretical calculations. We discuss future prospects for NCS measurements on non-crystalline materials.
Organisation
ISIS
,
ISIS-EVS
,
SERC
Keywords
Physics
,
Materials
,
ISIS 1994
Funding Information
Related Research Object(s):
Licence Information:
Language
English (EN)
Type
Details
URI(s)
Local file(s)
Year
Journal Article
J Phys-Condens Mat
6 (1994): 641.
doi:10.1088/0953-8984/6/3/006
1994
Report
RAL Technical Reports
RAL-93-052. 1993.
RAL-TR-1993-052.pdf
1993
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