Professor Dr. Ralph Claessen

Address Julius-Maximilians-Universität Würzburg
Physikalisches Institut
Lehrstuhl für Experimentelle Physik IV
Am Hubland
97074 Würzburg

Projects

As Applicant
- Completed projects
  - Spektroskopische Untersuchung von Vielteilcheneffekten in niedrigdimensionalen Metallen (Priority Programmes)
  - Investigation of the electronic structure of quasi-twodimensional metals by high-resolution photoelectron spectroscopy (Research Grants)
  - Dreidimensionale Bandstrukturbestimmung mithilfe der Kombination von niederenergetischer Elektronenbeugung und Photoemissionsspektroskopie (Research Grants)
  - Zentralprojekt (Research Units)
  - Elektronische Struktur und Kopplung mikroskopischer Freiheitsgrade in Übergangsmetall-Oxyhalogeniden (Research Grants)
  - Zentralprojekt (Research Units)
  - Doping of correlated oxides: Electronic structure and electron-lattice effects (Research Units)
  - Correlation effects in self-organized atomic nanostructures on semiconductor surfaces (Research Units)
  - Electronic structure and many-body effects in interfaces of oxide heterostructures (Research Units)
  - Novel k-space microscope for soft x-ray photoelectron spectroscopy of bulk materials and buried interfaces (Research Grants)
As Leader
- Completed projects
  - Präparationsanlage für gepulste Laserdeposition oxidischer Hetero- und Hybridstrukturen (PLD-System) (Major Research Instrumentation)
  - Tieftemperatur-Rastertunnelmikroskop (Major Research Instrumentation)
  - Hochauflösendes Röntgendiffraktometer (Major Research Instrumentation)
  - Kryomessstand für temperaturabhängige Leitfähigkeits- und Hall-Messungen (Major Research Instrumentation)
  - Molekularstrahlepitaxie-Anlage für Halbleiter-Filme (Halbleiter MBE) (Major Research Instrumentation)
  - VUV light source for high-resolution (energy/momentum/spatial) photoemission (Major Research Instrumentation)
  - Energy analyzer and compact analysis chamber for high-resolution photoelectron spectroscopy (Major Research Instrumentation)
As Spokesperson
- Current projects
  - EXC 2147: Complexity and Topology in Quantum Matter (CT.QMAT) (Clusters of Excellence (ExStra))
  - SFB 1170: Topological and Correlated Electronics at Surfaces and Interfaces ("ToCoTronics") (Collaborative Research Centres)
- Completed projects
  - FOR 1162: Electron Correlation-Driven Phenomena in Surfaces and Interfaces with Tunable Interactions (Research Units)
As Project Head
- Current projects
  - Electron spectroscopy of topological insulators: triangular atom monolayers (Collaborative Research Centres)
  - Bismuthene and related systems: a new class of 2D topological insulators (Collaborative Research Centres)
  - Spin-orbit coupling and electron correlations in complex oxides (Collaborative Research Centres)
  - Central coordination and administration (Collaborative Research Centres)
- Completed projects
  - Photoelektronenspektroskopie an Übergangsmetalloxiden (Collaborative Research Centres)
  - Photoelektronenspektroskopie an Übergangsmetallverbindungen (Collaborative Research Centres)
  - Interplay of correlations and spin-orbit physics in 1D and 2D surface systems (Collaborative Research Centres)
As Participating Person
- Completed projects
  - Untersuchung der Einteilchen-Anregungsspektren niedrigdimensionaler Metalle mit Hilfe der hochauflösenden Photoelektronenspektroskopie (Priority Programmes)
  - Korrelationseffekte in zweidimensionalen Elektronensystemen auf Halbleiteroberflächen (Research Grants)
  - Engineering of Topological Spin States in Epitaxial Alpha-Tin Layers (Research Grants)
As Co-Investigator
- Completed projects
  - Spectral electronic properties of noble metal nanowires with controlled architectures (Research Units)
  - Novel 2D Materials: Functionalized Stanene and Bismuthene Honeycomb Lattices (Priority Programmes)
  - Functionalizing electronic and magnetic properties in oxide thin films and heterointerfaces: electric polarization and polar discontinuity (Research Grants)