Group Leader Profiles

Displaying 1 - 6 of 6
Research

Prof. Dr. Robert Dinnebier

Leader of the Scientific Facility "X-Ray Diffraction" at the Max Planck Institute for Solid State Research (MPI-FKF), Adj. Professor at the University of Stuttgart, Hon. Professor at the University of Tübingen
homepage
X-Ray Powder Diffraction

• All aspects of modern powder diffraction • Structure determination • Thermochromic / Photochromic / Electronic / Magnetic materials • Microstructure • In-situ/time-resolved • Non-ambient conditions • Rietveld refinement • Parametric refinement • Landau theory / Strain-order parameter coupling • Method of Maximum Entropy



Research Method and Area:
Experimental
Chemistry, Material Science

Prof. Dr. Martin Dressel

Director of the 1st Physics Institute, University of Stuttgart
homepage
Optical, Electronic, and Magnetic Properties of Quantum Materials, Superconducting Electronics, and Advanced Materials

Solid state physics, correlated electron systems, molecular quantum materials, magnetically frustrated systems, quantum spin liquids, topological materials, Dirac electrons, physics of low-dimensional solids, superconductivity, materials for quantum computers, superconducting electronics, electrodynamics of solids, infrared and THz optical measurements of solids, microwave spectroscopy, magneto-optics, ellipsometry,



Research Method and Area:
Experimental
Physics

Dr. Simon Krause

Group Leader at the Max Planck Institute for Solid State Research (MPI-FKF)
homepage
Dynamic framework materials and molecular machines

Our interdisciplinary research group explores how to teach crystals tricks of living matter by investigating dynamic features of molecular framework materials such as metal-organic and covalent organic frameworks (MOFs and COFs). By specifically tuning the structural topology of the framework, we create soft porous crystals which exhibit pore contraction and/or expansion as a response to the adsorption of gases and fluids or external triggers such as light irradiation. Such materials can act as responsive cargo-release systems, nanoscopic sensors or feature counterintuitive phenomena such as negative gas adsorption. We furthermore construct frameworks which contain molecular machines such as light-driven molecular motors and switches as responsive and intrinsically dynamic building blocks. We aim towards collective operating molecular machines in the solid state which are able to actively transport molecules in the pore space and facilitate dynamic conversion and storage of energy carriers and other small molecules. Our diverse team uses a wide range of synthetic and experimental tools and collaborates in national and international research projects to push the boundaries of dynamic features in crystalline solids.



Research Method and Area:
Experimental
Chemistry, Material Science

Prof. Dr. Rainer Niewa

Institute of Inorganic Chemistry, University of Stuttgart
homepage
Inorganic Solid State Chemistry and Development of New Materials

The work focuses on synthesis and detailed characterization of metal-rich compounds, preferentially containing nitrogen as a constituent. First emphasis is the design and development of preparative techniques as basis for synthesis of novel materials. Special attention is granted to structural characterization, electronic and magnetic properties as well as mechanical and chemical behavior. These data are inevitable for any detailed consideration of chemical bonding and potential applications. • Advanced solid state synthesis of functional materials including various high pressure techniques, solvothermal synthesis and crystal growth, high temperature synthesis • Solid state reaction pathways and crystal growth mechanisms • Magnetic and superconducting materials, ionic conductors



Research Method and Area:
Experimental
Chemistry

Prof. Dr. Bertold Rasche

Jun.-Prof. at the Department of Inorganic Chemistry, University of Stuttgart
homepage
Solid State and Electrochemistry

Electrochemistry provides us with an unmatched lever to control the chemical equilibrium. Employing this lever in inorganic solid state chemistry allows the access to new (metastable) phases and structures. Concomitantly, electrochemistry affords an outstanding precision in the control and analysis of the composition of phases. This is particularly needed when studying complex physical phenomena such as superconductivity, because these properties are often very sensitive towards composition.
My group follows a combined electrochemical and solid state chemical approach, where electrochemistry is used to change the composition of solids post-synthetically, or compounds are synthesised directly from solution. Joining this approach with in-situ X-ray diffraction finally establishes a direct link between the electrochemical experiment and structural changes. This not only provides insights into complex physical phenomena, but is also the foundation of more applied topics such as battery research and electrochemical sensing.



Research Method and Area:
Experimental
Chemistry, Material Science, Physics

Dr. Lorenzo Tesi

Emmy Noether Junior Group Leader
homepage
Molecular Spin Qubits in Two-Dimensions at THz Frequency

Among the possible systems that exhibit quantum properties, molecular spin qubits (MSQs) are one of the most versatile platforms. At the heart of MSQs is the electronic spin, which can originate from unpaired electrons of organic centers, transition metals or lanthanides. The organic ligand surrounding the qubit can also be engineered to tune the electronic and spin properties. My group focuses on the deposition of MSQs on surfaces and investigation using spectroscopic techniques, in particular magnetic resonance. We also aim to extend the operating frequency range from X-band (9 GHz) to THz (> 100 GHz) using plasmonic metasurface magnetic resonators designed and fabricated by us. The group is therefore very multidisciplinary, at the interface of chemistry and physics, and young, having been established in January 2024



Research Method and Area:
Experimental
Chemistry, Physics