Pfleiderer, Christian (Prof. Dr.); Gegenwart, Philipp (Prof. Dr.)
Language:
en
Subject group:
PHY Physik
TUM classification:
PHY 600d; WER 000d; PHY 480d
Abstract:
In Ce based heavy fermion systems the hybridization of the 4f orbital of the Ce ion and the conduction band lead to unconventional phenomena. The aim of this thesis is to investigate and compare the magnetism on a microscopic scale within the heavy fermion families CeT2X2 (X = Si, Ge) and CeTIn5. Neutron scattering was used as the experimental method. In this thesis, the magnetic phase diagram as well as the magnetic order is determined. Additionally, the spin dynamic in zero magnetic field as well as depending on temperature and magnetic field is investigated.
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In Ce based heavy fermion systems the hybridization of the 4f orbital of the Ce ion and the conduction band lead to unconventional phenomena. The aim of this thesis is to investigate and compare the magnetism on a microscopic scale within the heavy fermion families CeT2X2 (X = Si, Ge) and CeTIn5. Neutron scattering was used as the experimental method. In this thesis, the magnetic phase diagram as well as the magnetic order is determined. Additionally, the spin dynamic in zero magnetic field as w...
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Translated abstract:
Ziel dieser Dissertation ist die Untersuchung und der Vergleich des Magnetismus auf mikroskopischer Skala innerhalb der Heavy Fermion Familien CeT2X2 (X = Si, Ge) und CeTIn5. Als experimentelle Methode wurde hierfür Neutronenstreuung verwendet. In dieser Arbeit wir die wird das magnetische Phasendiagram sowie die magnetische Ordnung bestimmt. Daneben wird die Spindynamik im Nullfeld sowie in Abhängigkeit von Magnetfeld und Temperatur untersucht.