Search for dissertations about: "Antiferromagnetism"
Showing result 1 - 5 of 9 swedish dissertations containing the word Antiferromagnetism.
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1. Chemical Tuning of the Magnetic Interactions in Layer Structures
Abstract : Thin metal films have found their use in many magnetic devices. They form pseudo two-dimensional systems, where the mechanisms for the magnetic interactions between the layers are not completely understood. READ MORE
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2. Synthesis, Nuclear Structure, and Magnetic Properties of some Perovskite Oxides
Abstract : Synthesis, nuclear structure, and magnetic properties of the perovskites: Nd0.7-xMgxSr0.3MnO3 (x=0.0, 0. READ MORE
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3. Two-dimensional antiferromagnetism : from Schwinger bosons to spin waves
Abstract : .... READ MORE
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4. Neutron spectroscopy studies of vibrational and diffusional dynamics in organometal halide and oxyhydride perovskites
Abstract : This thesis deals with inelastic and quasielastic neutron scattering studies on the dynamical properties of the organometal halide perovskite system MA1-xFAxPbI3 (MA = methylammonium; FA = formamidinium) and of the layered perovskite-type oxyhydride SrVO2H. These materials systems are of high interest for their excellent photovoltaic performance (MA1-xFAxPbI3) and hydride-ion conductivity (SrVO2H) and concomitant promise for various technological devices; however, the local structure and dynamics underpinning these materials properties remain unclear. READ MORE
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5. Phase transitions in high-temperature superconductors
Abstract : Thermal fluctuations and disorder strongly influence the behaviour of hightemperature superconductors. In particular the vortices play a key role in determining their properties. In this thesis the main focus lies on phase transitions, both in ultra-thin films and in three-dimensional systems, which are driven by vortex fluctuations. READ MORE