Search for dissertations about: "Mott insulator"
Showing result 1 - 5 of 9 swedish dissertations containing the words Mott insulator.
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1. Non-Linear Canonical Methods in Strongly Correlated Electron Systems
Abstract : In this thesis some new ideas to perform the analysis of Strongly Correlated Electronic Systems (SCES) are developed. In particular the use of non-linear canonical transformations is considered thoroughly. READ MORE
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2. Consequences of a non-trivial band-structure topology in solids : Investigations of topological surface and interface states
Abstract : The development and characterization of experimental setups for angle-resolved photoelectron spectroscopy (ARPES) and spin- and angle-resolved photoelectron spectroscopy (SARPES) is described. Subsequently, the two techniques are applied to studies of the electronic band structure in topologically non-trivial materials. READ MORE
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3. Correlated materials : models and methods
Abstract : This thesis encompass a series of studies on methods and models for electron systems with local interactions, relevant for correlated materials. The first study focus on the canonical model for local correlation, the Hubbard model. READ MORE
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4. Electronic transitions and correlation effects : From pure elements to complex materials
Abstract : Macroscopic properties of real materials, such as conductivity, magneticproperties, crystal structure parameters, etc. are closely related or evendetermined by the configuration of their electrons, characterized by electronicstructure. By changing the conditions, e.g, pressure, temperature, magnetic/electric field, chemical doping, etc. READ MORE
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5. From Order to Disorder in High Temperature Superconductors
Abstract : Phase transitions in a number of models related to hightemperature superconductors are investigated, using scalingmethods and Monte Carlo simulations. This thesis considers twomain topics. READ MORE