Search for dissertations about: "Phonon"
Showing result 1 - 5 of 172 swedish dissertations containing the word Phonon.
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1. Quantum acoustics with propagating phonons
Abstract : Surface acoustic waves (SAWs) are mechanical vibrations that propagate on the surface of solids while dissipating little power, consequently enabling them to propagate freely over long distances. The speed and wavelength of SAWs are reduced a five order of magnitude compared to when light is used as a carrier at gigahertz frequencies. READ MORE
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2. Resonant Inelastic X-ray Scattering Studies on Quasi-Two-Dimensional Superconducting Materials
Abstract : Unconventional superconductivity is one of the many fascinating research areas of condensed matter physics. Understanding the superconducting pairing mechanism and its connection with other competing states remains unclear. READ MORE
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3. Triptych of quantum matter in one dimension : Playful constructions in theoretical and computational physics
Abstract : In this compilation thesis, three different quantum mechanical systems are presented. All three have in common that they are one-dimensional quantum systems which, each in their own way, can be seen as analogous to other quantum systems. READ MORE
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4. Materials Design from ab initio Calculations
Abstract : This thesis presents a theoretical study of bulk materials using ab initio methods based on the density functional theory (DFT).Crystallographic structural phase transformations and phase stability for 5f-dioxides, ABO3 perovskites, and ABO4 compounds have been extensively studied. READ MORE
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5. Experimental Studies of Thermal Diffusivities concerning some Industrially Important Systems
Abstract : The main objective of this industrially important work was to gain an increasing understanding of the properties of some industrially important materials such as CMSX-4 nickel base super alloy, 90Ti.6Al.4V alloy, 25Cr:6Ni stainless steel, 0. READ MORE