This thesis discusses the impact of charge and spin ordering on electron and lattice excitations in the rare-earth tritellurides and in MnSi. Using Raman spectroscopy, anisotropies in the electron dynamics are studied as a function of temperature, magnetic field and applied pressure. In the tritellurides band hybridization was identified as an important factor for charge density wave formation. In MnSi phonons and conduction electrons respond to both the helimagnetic phase transition and the fluctuations above.
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This thesis discusses the impact of charge and spin ordering on electron and lattice excitations in the rare-earth tritellurides and in MnSi. Using Raman spectroscopy, anisotropies in the electron dynamics are studied as a function of temperature, magnetic field and applied pressure. In the tritellurides band hybridization was identified as an important factor for charge density wave formation. In MnSi phonons and conduction electrons respond to both the helimagnetic phase transition and the flu...
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