Search for dissertations about: "lattice dynamics"

Showing result 26 - 30 of 128 swedish dissertations containing the words lattice dynamics.

  2. 26. Vortex Properties from Resistive Transport Measurements on Extreme Type-II Superconductors

    Author : Andreas Rydh; KTH; []
    Keywords : superconductivity; vortex; phase transition; YBa2Cu3O7-d; vortex dynamics; critical current; single crystal; oxygen deficiency; anisotropy; vortex glass; vortex lattice; melting; vortex liquid; vortex correlation; disorder; Lorentz force;

    Abstract : .... READ MORE

  4. 27. Some applications of representation theory in homogeneous dynamics and automorphic functions

    Author : Samuel Charles Edwards; Andreas Strömbergsson; Henrik Schlichtkrull; Uppsala universitet; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; automorphic functions; effective equidistribution; Eisenstein series; homogeneous dynamics; horospheres; lattices; Lie groups; representation theory; Mathematics; Matematik;

    Abstract : This thesis consists of an introduction and five papers in the general area of dynamics and functions on homogeneous spaces. A common feature is that representation theory plays a key role in all articles. READ MORE

  5. 28. Theoretical Description of the Electron-Lattice Interaction in Molecular and Magnetic Crystals

    Author : Elham Mozafari; Igor A. Abrikosov; Sven Stafström; George Malcolm Stocks; Linköpings universitet; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; Molecular crystals; Charge transport; Polaron; Magnetic materials; Paramagnetic state; Molecular dynamics;

    Abstract : Electron-lattice interactions are often considered not to play a major role in material's properties as they are assumed to be small, the second-order effects. However, this study shows the importance of taking these effects into account in the simulations. READ MORE

  6. 29. Interacting particle systems for opinion dynamics: the Deffuant model and some generalizations

    Author : Timo Hirscher; Göteborgs universitet; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; Deffuant model; bounded confidence; opinion dynamics; sociophysics; consensus formation; general opinion space; percolation; pumpless water transport.; opinion dynamics;

    Abstract : In the field of sociophysics, concepts and techniques taken from statistical physics are used to model and investigate some social and political behavior of a large group of humans: their social network is given by a simple graph and neighboring individuals meet and interact in pairs or small groups. Although most of the established models feature rather simple microscopic interaction rules, the macroscopic long-time behavior of the collective often eludes an analytical treatment due to the complexity, which stems from the interaction of the large system as a whole. READ MORE

  7. 30. Mitigation of urban storm water runoff through application of computational fluid dynamics

    Author : Kaj Pettersson; Chalmers tekniska högskola; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; microstructure; infiltration; Green roof; CFD; wind-driven rain; building facade.; lattice Boltzmann;

    Abstract : This thesis covers computational methods for improving the ability of green roofs to mitigate storm water runoff in urban environments. Roofs with living vegetation, known as green roofs, have been used for this purpose however quantification of their ability to slow and stop rainfall runoff has not been undertaken to a large degree. READ MORE