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.
Results
Showing 1 to 20 of 26 for “"Topological Materials"”.
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Topological materials and quantum entanglement
… this thesis consists of two main topics: materials which realize topological phases of matter and applications of the concept of entanglement in understanding topological phases and their transitions. The first part will focus on a particular class of materials called topological …
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Floquet-Bloch manipulation of correlated topological materials
Submission original under an indefinite embargo labeled 'Open Access'. The submission was exported from vireo on 2025-10-19 without embargo terms
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Spectroscopy of Topological Materials and their Technological Applications
Topological materials have been at the forefront of condensed matter physics and material science research in the past decade. The concept of topology has greatly shaped our modern understanding of matter including how band topology can tailor the exotic electronic and structural properties of a …
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Exploring linear and nonlinear electromagnetic responses in topological materials
… nonlinear electromagnetic response properties in topological materials.Topological materials tend to produce unique transport signatures that point to the underlying topology of its electronic energy bands.Furthermore, given the recent experimental interest in terahertz spectroscopy and nonlinear …
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Angle-resolved photoemission studies of thin-film topological materials
… examines the electronic properties of topological materials in their thin film forms, including a prototypical topological insulator (TI), Bi2Te3, and a newly discovered topological Dirac semimetal (TDS), α-Sn under suitable strain. TIs and TDSs have nontrivial surface states and unique …
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A Machine Learning Approach for Understanding and Discovering Topological Materials
Topological materials are of significant interest for both basic science and next-generation technological applications due to their unconventional electronic properties. The majority of currently-known topological materials have been discovered using methods that involve symmetry-based analysis of …
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Scanning tunneling microscopy and spectroscopy of topological materials with broken symmetry
… the electronic and structural properties of topological materials. In three-dimensional topological insulators, the native substitutional defects result in a shift of the chemical potential into the conduction and valence bands. The added conduction channels obscure the physics of the …
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Scanning tunneling microscopy and spectroscopy of topological materials and heterostructures in thin films and devices
… experiments probing the physics of thin films of topological materials. A 3D topological insulator Bi2Te3 and a 2D topological insulator WTe2, grown epitaxially, are studied with atomic resolution, and their physics is probed using in-situ back gating. The development of the back-gating process in …
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Examining Topological Insulators and Topological Semimetals Using First Principles Calculations
The importance and promise that topological materials hold has been recently underscored by the award of the Nobel Prize in Physics in 2016 ``for theoretical discoveries of topological phase transitions and topological phases of matter." This dissertation explores the novel qualities and useful …
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Scanning tunneling microscopy studies of a tunable topological insulator and magnetic Weyl semimetal
The discovery of topological order with material systems, and the unique electronic states necessitated by non-trivial topology, has been a major thrust of condensed matter research for the past two decades. As exotic topological electronic states often manifest themselves at reduced dimensional …
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An Investigation into Topological Crystals and Flat Band Systems
… investigated through measurements of crystalline materials. This thesis investigates the synthesis of 3-dimensional systems under two broad classes: topological materials and flat band materials. The topological systems investigated include the topological insulator Cu₂Ti, the Weyl semimetal …
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Modelling of Berry phase and Fermi-level topologies for emergent quantum phenomena prediction in selected solid state systems
Topological materials host electronic states that remain robust against perturbations and offer routes to novel quantum functions. This thesis investigates three representative compounds - SrSi2, CoSi, and NbP - to reveal how external stimuli, namely tensile strain and electric fields, tune their …
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Learning Simple Chemical Heuristics to Model and Discover Materials
… long played an important role in the field of materials science, driving both the scientific study of materials’ fundamental properties and the design of materials for technological applications. Currently, mainstream methods in computational materials science typically rely on either …
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Physics and applications of magnetic interactions in topological insulators
… and experimental discovery of a variety of topological materials over the past decade, their use in next-generation technologies remains limited. To better characterize the utility of these unique materials for engineering applications, we critically study the physics and application of …
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Topological semimetals and nodal superconductors
Besides topological band insulators, which have a full bulk gap, there are also gapless phases of matter that belong to the broad class of topological materials, such as topological semimetals and nodal superconductors. We systematically study these gapless topological phases described by the Bloch …
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Angle-resolved photoemission and first-principles studies of topological thin films
Topological insulators are electronic materials that have a bulk band gap like an ordinary insulator but have protected conducting states on their edge or surface. The exotic electronic properties of topological materials are of great interest for spin-related electronics and quantum computation. …
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Magnetic Weyl Semimetals for Spintronic Applications
Magnetic Weyl semimetals are a category of topological materials that hold promise for spintronic applications due to their unconventional transport properties, which arise from both bulk and surface topological states, as well as the rich interplay between band topology and magnetism. Among the …
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Quantum Transport in Topological Phases of Matter
Topological phases of matter attract constant attention in the condensed matter physics community, both due to the fundamental yet simple principles that govern them, and a multitude of experimental observations with the potential for technological applications. Among the ways of studying such …
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Phase-sensitive probes of extended topological Josephson junctions
The combination of superconductors and topological materials has yielded a rich area of study in condensed matter physics. In particular, the possibility of generating Majorana bound states (MBSs) in these hybrid systems has provided motivation for many experiments targeting signatures of MBSs. In …
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Quantum spins in semiconductor nanostructures: Hyperfine interactions and optical control
… of such systems: Semiconductor quantum dots and topological insulators. The first part of the dissertation is devoted to the study of semiconductor quantum dots as candidates for quantum information storage and sources of single-photon emission. The spin of the electron trapped in a …
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