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 20 of 98 for “"Angle-resolved"”.
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Angle resolved dielectric response in carbon nanotubes
The thesis "Anlre resolved dielectric response in carbon nanotubes" is dedicated to expounding the the anisotropy in the fundamental dielectric response of carbon nanotubes. While nanotubes are along their axis essentially planar graphene, the rolled up topology gives rise to entirely new …
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Angle resolved photoemission studies of silver bromide
… synchrotron radiation is used to obtain both angle resolved photoemission data and angle integrated photoemission data on randomly oriented thick films of metallic silver, thin films of randomly oriented polycrystalline AgBr and AgBri, and epitaxially grown AgBr on an Ag ( 111) single crystal. …
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Angle resolved photoemission studies of silver-bromide
… synchrotron radiation is used to obtain both angle resolved photoemission data and angle integrated photoemission data on randomly oriented thick films of metallic silver, thin films of randomly oriented polycrystalline AgBr and AgBrI, and epitaxially grown AgBr on an Ag (111) single crystal.
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Angle Resolved Photoemission Study of Epitaxial Chromium Dioxide Films
… region of CrO2 have been studied by performing angle-resolved ultra-violet photoelectron spectroscopy (ARUPS) measurements on epitaxial CrO2 films. The CrO2 thin films were deposited on (100) and (110) – oriented TiO2 substrates by chemical vapor deposition. Previous measurements of the …
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Angle-Resolved Thermal Desorption Spectroscopy as a Surface Probe
… the activation barrier to adsorption. By using angle-resolved thermal desorption spectroscopy one can observe directed desorption under conditions where the activation barrier to adsorption can be measured independently. For hydrogen on polycrystalline nickel, the desorption distribution …
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Angle-resolved photoemission studies of two-dimensional electron systems
… importance. The major experimental tool is angle-resolved photoemission spectroscopy, which can directly measure the spectral function of the quasiparticle. The study of ultrathin metallic films focuses on the substrate effect on the electronic structure of the film. Thin metallic films can …
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Angle-resolved photoemission studies of thin-film topological materials
… materials are studied by a combined method of angle-resolved photoemission spectroscopy (ARPES) and first-principles calculations. We have studied the electronic structure of Bi2Te3 films using ARPES with circularly-polarized lights. Our ARPES results show a thickness-dependent electronic …
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Angle-resolved photoemission and first-principles studies of topological thin films
… In this thesis research, the combination of angle-resolved photoemission spectroscopy (ARPES) and first principles calculation is used to examine the electronic properties of topological thin films and 2D electronic systems with large spin-orbit splitting. The topological thin films are …
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Angle-resolved photoemission studies of topological thin films and superconducting heterostructures
… high-energy electron diffraction (RHEED). Angle-resolved photoemission spectroscopy (ARPES) is employed to quantify the electronic band structure of all topological films and associated heterostructures. Systems fabricated during this dissertation research include the topological insulators …
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Angle-resolved photoemission and first-principles studies of topological thin-film heterostructures
Submission published under a 24 month embargo labeled 'U of I Access', the embargo will last until 2025-05-01
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Angle-resolved photoemission spectroscopy studies of epitaxially-grown van der Waals ferromagnets
Submission original under an indefinite embargo labeled 'Open Access'. The submission was exported from vireo on 2023-04-12 without embargo terms
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Angle-resolved photoemission and first-principles studies of topological semimetals and heterostructures
… devices and quantum computation. In this study, angle-resolved photoemission spectroscopy (ARPES) and first-principles calculations are used to study the electronic properties of topological semimetals and topological heterostructures. The topological heterostructures are prepared using molecular …
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Angle-resolved photoemission studies of quantum-electronic coherence in metallic thin-film systems
… two experiments. The first of these concerns an angle-resolved photoemission study of the electronic structure of Pb films prepared on atomically uniform Ag(111) films. The data host a striking Fabry-Perot-like structure typical of a high-finesse Pb/Ag/Si(111) interferometer. Remarkably, the …
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Angle-Resolved Photoemission Studies on the Many-Body Effects of High-Temperature Superconductor: Bi-2212
… a stable photon-energy helium lamp–based ARPES (angle-resolved photoemission spectroscopy) system with high energy resolution to extract detailed single-particle spectral functions in Bi-2212. Using these spectral functions, we reconstructed both the non-interacting and interacting spin …
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Validation of angle-resolved polarized light scattering spectroscopy as a diagnostic tool for pre-cancer detection
Light scattering spectroscopy has emerged as a valuable diagnostic tool for cancer diagnoses in the past ten years. The interaction of light with cellular structures brings out information about morphological changes accompanying malignancy at early stages. The virtue of this technique is to …
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Measuring the Electronic Structure of Atomically Uniform Silver Films Grown on Silicon Using Angle-Resolved Photoemission Spectroscopy
As the film thickness increases, the electronic structure evolves to form the bulk band continuum plus separates surfaces states. A careful analysis of this evolution allows us to separate surface from bulk effects, an important and troubling problem in photoemission spectroscopy. As a result, we …
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Angle-Resolved Photoelectron Spectroscopy Studies of the Many-Body Effects in the Electronic Structure of High-Tc Cuprates
In spite of the failures to find an ultimate theory of unconventional superconductivity, after many years of research the scientific community possesses a considerable store of theoretical knowledge about the problem. Over time, the focus is gradually shifted from finding a theoretical description …
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Investigation of growth kinetics of self-assembling monolayers by means of contact angle, optical ellipsometry, angle-resolved XPS and IR spectroscopy.
… solutions has been studied by means of contact angle, optical ellipsometry, angle-resolved XPS (ARXPS), and with grazing angle total reflection FTIR. Growth of the monolayers from dilute solutions has been monitored and Langmuir isotherm adsorption curves were fitted to experimental data. A …
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Concentration depth-profile reconstruction from angle-resolved XPS data using the maximum entropy method: characterization of surface film formed on Ni-18P alloy
… transformation of XPS intensities vs. emission angle into concentrations vs. depth data is an ill posed mathematical problem. The main goal of this work was thus to develop a new, iterative algorithm based on the maximum entropy method (MEM) that allows to solve this problem. The new algorithm …
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