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TWO-DIMENSIONAL MATERIALS: FROM BERRY CURVATURE TO WRAPPING A MICROSPHERE

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dc.contributor.authorMcGill, Kathryn Lorraine
dc.contributor.chairMcEuen, Paul L.
dc.contributor.committeeMemberArias, Tomas A.
dc.contributor.committeeMemberRalph, Daniel C.
dc.date.accessioned2018-10-23T13:34:24Z
dc.date.available2018-10-23T13:34:24Z
dc.date.issued2018-08-30
dc.description.abstractThe study of atomically-thin, truly two-dimensional (2D) materials has morphed into its own field since the experimental isolation of graphene and similar 2D materials in 2005. Graphene, as a single layer of carbon atoms with a unique band structure, and monolayer molybdenum disulfide (MoS<sub>2</sub>), a three-atom-thick semiconductor, have been of particular interest both for the physics accessible in 2D crystals and the applications achievable with highly flexible materials. This dissertation presents a variety of experiments exploring the optoelectronic and mechanical properties of both monolayer MoS<sub>2</sub> and graphene. In particular, we present three studies: (1) the experimental realization of the valley Hall effect, an effect based on the Berry curvature of a material’s energy bands, in monolayer MoS<sub>2</sub>; (2) methods for directly measuring the bending stiffness of graphene (and related 2D materials); and (3) an investigation of the wrapping of micro-spherical droplets by monolayer MoS<sub>2</sub>. We conclude by discussing the future outlook of both "valleytronics" and microencapsulation by 2D materials.
dc.identifier.doihttps://doi.org/10.7298/X4CZ35FC
dc.identifier.otherMcGill_cornellgrad_0058F_11106
dc.identifier.otherhttp://dissertations.umi.com/cornellgrad:11106
dc.identifier.otherbibid: 10489724
dc.identifier.urihttps://hdl.handle.net/1813/59628
dc.language.isoen_US
dc.rightsAttribution-NonCommercial-ShareAlike 4.0 International*
dc.rights.urihttps://creativecommons.org/licenses/by-nc-sa/4.0/*
dc.subjectGraphene
dc.subjectbending stiffness
dc.subjectmolybdenum disulfide
dc.subjectvalley Hall effect
dc.subjectwrapping
dc.subjectPhysics
dc.subject2D materials
dc.subjectNanotechnology
dc.subjectNanoscience
dc.titleTWO-DIMENSIONAL MATERIALS: FROM BERRY CURVATURE TO WRAPPING A MICROSPHERE
dc.typedissertation or thesis
dcterms.licensehttps://hdl.handle.net/1813/59810
thesis.degree.disciplinePhysics
thesis.degree.grantorCornell University
thesis.degree.levelDoctor of Philosophy
thesis.degree.namePh. D., Physics

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