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dc.contributor.advisorCobden, David Hen_US
dc.contributor.authorPark, Jae Hyungen_US
dc.date.accessioned2014-04-30T16:17:32Z
dc.date.available2014-04-30T16:17:32Z
dc.date.issued2014-04-30
dc.date.submitted2014en_US
dc.identifier.otherPark_washington_0250E_12744.pdfen_US
dc.identifier.urihttp://hdl.handle.net/1773/25337
dc.descriptionThesis (Ph.D.)--University of Washington, 2014en_US
dc.description.abstractThe first-ever accurate measurement of a solid-state triple point in vanadium dioxide was made by performing simultaneous optical and transport measurements on a purpose-built nanomechanical strain apparatus that actively controls the length of a single nanobeam with a nanometer precision. The nature of the metal-insulator transition (MIT) in vanadium dioxide remains unsettled due to the presence of more than one insulating phase near the transition point, an observation that neither Mott nor Peierls picture of the transition suffices to explain. The triple point in vanadium dioxide, which has not been located, is a key to constructing its intrinsic phase diagram, a fundamental ingredient in the analysis and interpretation of any study of the MIT. The striking result is that the triple point precisely is where the MIT occurs at zero stress. While the implication of the new findings is unclear, there is a little doubt they will be crucial ingredients to the correct theory of the MIT. The value and importance of working with a single-domain nanocrystal while actively applying controlled strain have been demonstrated. This approach to studying the phase transition may serve as an indispensable tool, a new paradigm, for mastering the physics of complicated phenomena in strongly correlated materials where strain plays a key role.en_US
dc.format.mimetypeapplication/pdfen_US
dc.language.isoen_USen_US
dc.rightsCopyright is held by the individual authors.en_US
dc.subjectnanocrystal; nanomechanical; phase diagram; phase transition; strain control; vanadium dioxideen_US
dc.subject.otherPhysicsen_US
dc.subject.otherNanotechnologyen_US
dc.subject.otherMaterials Scienceen_US
dc.subject.otherphysicsen_US
dc.titleMeasurement of a solid-state triple point at the metal-insulator transition in vanadium dioxideen_US
dc.typeThesisen_US
dc.embargo.termsNo embargoen_US


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