Measurement of anisotropies of the kinetic energy and anharmonicity in pyrolytic graphite by neutron Compton scattering

Fielding, A.L., Timms, D.N., & Mayers, J. (1998) Measurement of anisotropies of the kinetic energy and anharmonicity in pyrolytic graphite by neutron Compton scattering. Europhysics Letters, 44(2), pp. 255-260.

View at publisher

Abstract

Neutron Compton scattering (NCS) measurements of the anisotropy of the momentum distribution and the mean Laplacian of the interatomic potential ∇2V have been performed using electron volt neutrons, with wave vector transfers between 24 Å−1 and 98 Å−1. The measured momentum distribution of the atoms displays significantly more anisotropy than a calculation using a model density of states. We have observed anisotropies in ∇2V for the first time. The results suggest that the atomic potential is harmonic within the graphite planes, but anharmonic for vibrations perpendicular to the planes.

Impact and interest:

28 citations in Scopus
Search Google Scholar™
28 citations in Web of Science®

Citation counts are sourced monthly from Scopus and Web of Science® citation databases.

These databases contain citations from different subsets of available publications and different time periods and thus the citation count from each is usually different. Some works are not in either database and no count is displayed. Scopus includes citations from articles published in 1996 onwards, and Web of Science® generally from 1980 onwards.

Citations counts from the Google Scholar™ indexing service can be viewed at the linked Google Scholar™ search.

ID Code: 59131
Item Type: Journal Article
Refereed: Yes
Additional Information: Times Cited: 23
Fielding, AL Timms, DN MAyers, J
DOI: 10.1209/epl/i1998-00465-1
ISSN: 1286-4854
Subjects: Australian and New Zealand Standard Research Classification > PHYSICAL SCIENCES (020000) > CONDENSED MATTER PHYSICS (020400) > Condensed Matter Physics not elsewhere classified (020499)
Divisions: Current > Institutes > Institute of Health and Biomedical Innovation
Past > Schools > Physics
Current > QUT Faculties and Divisions > Science & Engineering Faculty
Deposited On: 17 Apr 2013 22:50
Last Modified: 24 Apr 2013 05:58

Export: EndNote | Dublin Core | BibTeX

Repository Staff Only: item control page