{"id":{"repo_id":"uiuc","oai_identifier":"oai:www.ideals.illinois.edu:2142/34746"},"canonical_url":"https://search.dev.ndltd.org/etd/uiuc/oai:www.ideals.illinois.edu:2142/34746","repository":{"repo_id":"uiuc","name":"University of Illinois - Urbana-Champaign","base_url":"https://www.ideals.illinois.edu/oai-pmh"},"display":{"title":"X-ray Studies of Lattice Dynamics","abstract":"Analysis of thermal diffuse scattering of x-rays (TDS) has recently shown great promise as a tool for phonon studies, complementing more traditional neutron scattering techniques. Quasi-elastic x-ray scattering from thermally populated phonon modes has been used to study lattice dynamics and phonon phase transitions in several systems. Several experiments are reviewed - the viability and accuracy of this method was established by establishing phonon dispersion curves (PDCs) in elemental systems including Si and Nb while the applicability to more complex materials was demonstrated by studying phonon softening in charge density wave (CDW) TiSe2 and antiferrodistortive (AFD) SrTiO3. This thesis work helps to develop analysis of x-ray thermal diffuse scattering as a viable method for studies of lattice dynamics.","abstract_html":"Analysis of thermal diffuse scattering of x-rays (TDS) has recently shown great promise as a tool for phonon studies, complementing more traditional neutron scattering techniques. Quasi-elastic x-ray scattering from thermally populated phonon modes has been used to study lattice dynamics and phonon phase transitions in several systems. Several experiments are reviewed - the viability and accuracy of this method was established by establishing phonon dispersion curves (PDCs) in elemental systems including Si and Nb while the applicability to more complex materials was demonstrated by studying phonon softening in charge density wave (CDW) TiSe2 and antiferrodistortive (AFD) SrTiO3. This thesis work helps to develop analysis of x-ray thermal diffuse scattering as a viable method for studies of lattice dynamics.","abstract_has_math":false,"creators":["Holt, Martin Victor"],"institution":null,"degree_name":"Ph.D.","degree_level":"Dissertation","degree_discipline":"Physics","degree_department":null,"school":null,"contributors":["Chiang, Tai-Chang"],"advisors":[],"committee_chairs":[],"committee_members":[],"year":2012,"date_issued":"2012-10-13T02:34:43Z","date_published":"2012-10-13T02:34:43Z","updated_at":"2026-07-22T22:25:31Z","subjects":["X-ray Diffraction","Lattice Dynamics","Phonon Dispersions"],"languages":["en"],"rights":["©2002 Martin Victor Holt"],"rights_urls":[],"identifier_entries":[{"key":"dc:identifier","label":"Identifier","values":["4870238"],"render_values":[{"text":"4870238","href":null,"code":true}]}]},"links":{"outbound_url":"http://hdl.handle.net/2142/34746","outbound_label":"Handle","outbound_source":"dc:identifier"},"metadata_groups":[{"id":"people","label":"People","entries":[{"key":"dc:contributor","label":"Contributor","values":["Chiang, Tai-Chang"]},{"key":"dc:creator","label":"Author","values":["Holt, Martin Victor"]}]},{"id":"academic_context","label":"Academic Context","entries":[{"key":"dc:date","label":"Dc Date","values":["2012-10-13T02:34:43Z","10000-01-01","2002-12"]},{"key":"dc:type","label":"Dc Type","values":["Dissertation / Thesis","text"]},{"key":"thesis:degree_discipline","label":"Discipline","values":["Physics"]},{"key":"thesis:degree_level","label":"Degree Level","values":["Dissertation"]},{"key":"thesis:degree_name","label":"Degree Name","values":["Ph.D."]}]},{"id":"subjects_keywords","label":"Subjects and Keywords","entries":[{"key":"dc:subject","label":"Dc Subject","values":["X-ray Diffraction","Lattice Dynamics","Phonon Dispersions"]}]},{"id":"language_rights","label":"Language and Rights","entries":[{"key":"dc:language","label":"Dc Language","values":["en"]},{"key":"dc:rights","label":"Dc Rights","values":["©2002 Martin Victor Holt"]}]},{"id":"identifiers","label":"Identifiers","entries":[{"key":"dc:identifier","label":"Identifier","values":["4870238","http://hdl.handle.net/2142/34746"]}]},{"id":"additional","label":"Additional Metadata","entries":[{"key":"dc:description","label":"Description","values":["Analysis of thermal diffuse scattering of x-rays (TDS) has recently shown great promise as a tool for phonon studies, complementing more traditional neutron scattering techniques. 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Quasi-elastic x-ray scattering from thermally populated phonon modes has been used to study lattice dynamics and phonon phase transitions in several systems. Several experiments are reviewed - the viability and accuracy of this method was established by establishing phonon dispersion curves (PDCs) in elemental systems including Si and Nb while the applicability to more complex materials was demonstrated by studying phonon softening in charge density wave (CDW) TiSe2 and antiferrodistortive (AFD) SrTiO3. This thesis work helps to develop analysis of x-ray thermal diffuse scattering as a viable method for studies of lattice dynamics.","Submitted by Meng Tao (mengtao2@illinois.edu) on 2012-10-13T02:34:43Z No. of bitstreams: 1 holt.pdf: 2282742 bytes, checksum: 183f3f8f06dcc615efde9ae47a3882a0 (MD5)","Made available in DSpace on 2012-10-13T02:34:43Z (GMT). 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