Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 5 of 5 for “"Insulator heterostructures"”.
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Epitaxial growth and plasmonic coupling in topological insulator heterostructures
Three-dimensional (3D) topological insulator (TI) belongs to the group of quantum spin Hall insulators that exhibit helical superconducting surface states and insulating bulk states. Electrons occupying these surface states are two-dimensional (2D) massless, linear dispersed, and spin-momentum …
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The physics of multilayer topological insulator heterostructures using low-energy models
This thesis studies the physics of multilayer heterostructures grown from topological insulators (TIs), primarily bismuth selenide and antimony telluride, and other topologically trivial materials. This is done by extending a standard low-energy 3D TI Hamiltonian and varying its associated material …
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The Interplay of Spin, Charge, and Heat: From Metal/Insulator Heterostructures to Perovskite Bilayers
<p>In this dissertation begin with an investigation of non-local spin transport in an amorphous germanium (a-Ge) sample via the inverse spin Hall effect (ISHE). In that study we show that commonly used techniques such as differential conductance and delta mode of a paired Keithley 6221/2182a for …
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Structural dynamics of photoexcited nanolayered perovskites studied by ultrafast x-ray diffraction
… anharmonic lattice dynamics of epitaxial metal-insulator heterostructures on timescales ranging from femtoseconds up to nanoseconds. To infer information on the transient dynamics in the photoexcited crystal lattices experimental techniques using ultrashort optical and x-ray pulses are employed. …
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The Interplay of Magnetism and Topology in Topological Insulators
The conductive helical edge states in topological insulators (TIs) have been lauded over the last decade as a means towards the development of low-energy electronic and spintronic devices. Unfortunately, development of TI devices have been hampered by issues such as impurities and difficulty in …