Bachelor, Master and PhD theses
The HLD offers the possibility for Bachelor, Master, Diploma and PhD theses for interested students of appropriate branches of study. Furthermore, we provide the opportunity to work as a student research assistant at our institute.
You may send us your application or contact us by phone or e-mail in advance.
Current Bachelor Themes
- Magnetization studies of novel superconductors
Novel superconducting materials will be investigated by means of SQUID or vibrating-sample magnetometry. You will use advanced measurement techniques and devices in order to study novel superconductors at extreme sample conditions. Supported by the HLD team, you will develop and program measurement routines for your experiments.
- Investigation on the critical current density of nanostructured superconductors
You will measure the critical current density of a novel nanostructured compound. For your experiments, you will use a modern apparatus which allows for controlling the sample temperature, magnetic field, and the geometrical orientation of the sample relative to the field axis. Your experiment will shed more light onto the fascinating properties of superconducting nanostructures.
Current Master Topics
- Thermodynamics of spin-ice compounds
Investigation of the magnetic ground state of spin-ice compounds by means of heat-capacity measurements at very low temperatures. You will perform thermodynamic measurements by using the ultralow-temperature equipment of the HLD. Magnetic fields applied to the sample will be produced in superconducting magnets.
- Quantum oscillation measurements in strongly correlated electron systems
You will utilize high magnetic fields in order to observe quantum oscillations by means of high resolution transport (Shubnikov- de Haas effect) or magnetization (de Haas-van Alphen effect) measurements. Your data will give insight into the band structure and Fermi surface of novel, not yet understood materials.
Current PhD Projects
Transport and magnetization of novel metallic materials
This work aims at the characterization of novel metallic materials by means of electrical transport and magnetization measurements. Experiments will be performed at extreme sample conditions in order to map the entire B-T-phase diagram. Performing high-resolution transport (Shubnikov-de Haas effect) and magnetization (de Haas-van Alphen effect) quantum-oscillation experiments will allow for determining the electronic band structure of single-crystalline novel metalls. In this work, both superconducting and pulsed high-field magnets will be utilized.
Spin Dynamics and Magnetism of Spin Systems with Frustration
This DFG-funded project aims at the investigation of the ground-state properties and low-energy spin dynamics in magnetic systems with frustration. Such systems are known to exhibit exciting properties, where unique effects of geometrical frustration, quantum fluctuations, magnetic order, and anisotropy play particular important roles. Electron spin resonance spectroscopy at high magnetic fields will be employed as main experimental technique, allowing us to probe magnetic excitations over a large temperature-field range. Both superconducting and pulsed high-field magnets will be utilized. The experimental data will be analyzed in the frame of recent theoretical models, aiming at a better understanding of the effects resulting from competing interactions in frustrated magnets.