Harmonic and Anharmonic Vibrations in Rubidium Metal

Copley , John Richard Dawn

Please use this identifier to cite or link to this item: http://hdl.handle.net/11375/17528

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DC Field	Value	Language
dc.contributor.advisor	Brockhouse, B. N.	-
dc.contributor.author	Copley , John Richard Dawn	-
dc.date.accessioned	2015-06-11T20:48:08Z	-
dc.date.available	2015-06-11T20:48:08Z	-
dc.date.issued	1970-10	-
dc.identifier.uri	http://hdl.handle.net/11375/17528	-
dc.description.abstract	No abstract provided.	en_US
dc.language.iso	en	en_US
dc.subject	atomic vibrations	en_US
dc.subject	rubidium	en_US
dc.subject	phonon frequency distribution	en_US
dc.subject	anharmonic vibrations	en_US
dc.subject	lattice spacing	en_US
dc.subject	neutron diffraction	en_US
dc.title	Harmonic and Anharmonic Vibrations in Rubidium Metal	en_US
dc.type	Thesis	en_US
dc.contributor.department	Physics	en_US
dc.description.degreetype	Thesis	en_US
dc.description.degree	Doctor of Philosophy (PhD)	en_US
dc.description.layabstract	Scope and contents: The atomic vibrations in rubidium have been studied by the method of slow neutron spectrometry. The results have been analysed to yield atomic force constants which are used to compute the phonon frequency distribution. An interesting effect in the [00ζ]L branch has been examined, and an explanation of the observations is offered. Anharmonic calculations of frequency shifts and widths are presented, as well as a calculation of the anharmonic heat capacity. The third and fourth derivatives of the real space interatomic potential, which are required for these computations, are estimated in various ways. A determination of the lattice spacing of rubidium by neutron diffraction is described.	en_US
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