Estimation of force constants of Al from diffuse neutron scattering measurement

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dc.contributor.authorMakhsunen_AU
dc.contributor.authorHashimoto, Ten_AU
dc.contributor.authorTakahashi, Hen_AU
dc.contributor.authorKamishima, Oen_AU
dc.contributor.authorIgawa, Nen_AU
dc.contributor.authorDanilkin, SAen_AU
dc.contributor.authorSakuma, Ten_AU
dc.date.accessioned2016-09-30T00:20:48Zen_AU
dc.date.available2016-09-30T00:20:48Zen_AU
dc.date.issued2014-06-19en_AU
dc.date.statistics2016-09-30en_AU
dc.description.abstractNeutron diffraction measurement of an aluminum powder sample at 290 K was carried out at the high resolution powder diffractometer installed at JRR-3. Broad oscillations of the diffuse scattering intensity were observed and explained by the correlation effects among the thermal displacements of atoms. The interatomic force constants were determined from the correlation effects using a newly introduced equation. The derived force constants and the crystal structure of Al were used to estimate the phonon dispersion relations, phonon density of states, and specific heat by computer simulation. The calculated phonon dispersion relations and specific heat of Al are similar to those obtained from inelastic neutron scattering and specific heat measurements, respectively.© 2014, The Physical Society of Japan.en_AU
dc.identifier.articlenumber74602en_AU
dc.identifier.citationMakhsun, Hashimoto, T., Sakuma, T., Takahashi, H., Kamishima, O., Igawa, N., & Danilkin, S. A. (2014). Estimation of force constants of Al from diffuse neutron scattering measurement. Journal of the Physical Society of Japan, 83(7), 074602. doi:10.7566/jpsj.83.074602en_AU
dc.identifier.govdoc7199en_AU
dc.identifier.issn1347-4073en_AU
dc.identifier.issue7en_AU
dc.identifier.journaltitleJournal of the Physical Society of Japanen_AU
dc.identifier.urihttp://dx.doi.org/10.7566/jpsj.83.074602en_AU
dc.identifier.urihttp://apo.ansto.gov.au/dspace/handle/10238/7617en_AU
dc.identifier.volume83en_AU
dc.language.isoenen_AU
dc.publisherThe Physical Society of Japanen_AU
dc.subjectNeutron diffractionen_AU
dc.subjectAluminiumen_AU
dc.subjectOscillationsen_AU
dc.subjectAtomsen_AU
dc.subjectPhononsen_AU
dc.subjectCrystal structureen_AU
dc.titleEstimation of force constants of Al from diffuse neutron scattering measurementen_AU
dc.typeJournal Articleen_AU
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