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 Karl Franzens University Graz

Graz University of Technology 

TUG/KFU Physics Colloquium Winter 2023


Tuesday 03 October 2023      TUG

16:15 - 17:15

Photonic and Mixed Ionic/Electronic Neuromorphic Device Concepts for Artificial Neural Networks
Prof. Dr. Emil J. W. List-Kratochvil , Humboldt-Universität zu Berlin, Helmholtz-Zentrum für Materialien und Energie GmbH

Artificial neural networks (ANN), inspired by biological nervous systems, enable signal processing beyond the capabilities of classical von Neumann computer architectures. Through dynamically adapting the connectivity (synaptic weights) in individual devices and by applying learn ... more


Tuesday 10 October 2023      

16:15 - 17:15

From defect luminescence to cationic mixing: Oxide materials in the STM
Prof. Dr. Niklas Nilius, University of Oldenburg - Germany

Oxide materials are omnipresent in science and technology. Given their low carrier density and poor screening ability, oxide properties are often inhomogeneous in space and governed by stoi-chiometry modulations, defects and impurities. Spatially resolving techniques are therefor ... more


Tuesday 17 October 2023      

16:15 - 17:15

Optical and EUV Lithography: Enablers of continued semiconductor scaling
PD Dr. Andreas Erdmann, Fraunhofer IISB Erlangen

The size of the smallest features on nanoelectronics circuits is governed by the Abbe-Rayleigh criterion k1 lambda / NA, where lambda stands for the wavelength of the used light, NA is the numerical aperture and k1 is a technology-dependent factor. We briefly discuss the conseque ... more


Tuesday 31 October 2023      TUG

16:15 - 17:15

Ab-initio thermodynamics with machine-learned force fields
Prof. Georg K. H. Madsen, PhD, Institute of Materials Chemistry, TU Wien, Vienna, Austria

Recent advances in machine learning provide access to highly accurate surrogate potential energy surfaces (PESs) at a fraction of the computational cost of ab-initio calculations. The computational efficiency opens the door to predictive calculation of thermodynamic properties wi ... more


Tuesday 07 November 2023      HS 05.01

16:15 - 17:15

Towards single-crystal silicene by interface engineering
Guido Fratesi, Milano University

Two-dimensional (2D) materials of single/few-atom thickness are attracting significant attention for applications in low-power and flexible electronics and optoelectronics. Their properties, often different from those of corresponding bulk materials, can further be tailored by st ... more


Tuesday 14 November 2023      TUG

16:15 - 17:15

Designing Superconductors with Supercomputers
Dr. Christoph Heil, Institute of Theoretical and Computational Physics, Graz University of Technology

Designing materials with advanced functionalities is the main focus of contemporary solid-state physics and chemistry. In this talk, I will explore the in-silico prediction of superconducting materials from first principles, combining cutting-edge methods in crystal structure pre ... more


Tuesday 21 November 2023      TUG

16:15 - 17:15

Real-space subfemtosecond imaging of quantum electronic coherences in molecules
Dr. Manish Garg, Max Planck Institute for Solid State Research, Heisenbergstr. 1, 70569 Stuttgart, Germany

Imaging Electronic and Atomic Motion in Molecules Motion of electrons is at the heart of any chemical transformation, photo-induced charge or energy transfer process in molecules. Contemporary techniques in ultrafast science have the capability to generate and trace the conseq ... more


Tuesday 28 November 2023      TUG

16:15 - 17:15

Understanding and Mitigating Electrolyte Degradation in High Voltage Li Ion Batteries
Prof. Prof. h.c. mult. Dr. Martin Winter, Westfälische Wilhelms-Universität MEET Batterieforschungszentrum

Johannes Kasnatscheew, Sven Klein, Maximilian Kubot, Lukas Stolz, Sascha Nowak, and Martin Winter MEET Battery Research Center, Institute of Physical Chemistry, University of Münster, Corrensstrasse 46, 48149 Münster, Germany and Helmholtz-Institute Münster, IEK-12, Fors ... more


Tuesday 05 December 2023      

16:15 - 17:15

The Cosmological Constant Puzzle
Dr. Steven Bass, Institut für Experimentalphysik, Universität Innsbruck

Within Einstein's theory of General Relativity, the cosmological constant drives the accelerating expansion of the Universe. The cosmological constant is interpreted as the vacuum energy density perceived by gravitation. Experimentally, it corresponds to an energy scale 0.002 e ... more


Tuesday 12 December 2023      TUG

16:15 - 17:15

Chasing systematic errors in dual comb spectroscopy
Prof. Jerome Genest, PhD, Université Laval, Quebec, Canada

The dual comb interferometer emerges as a tool of choice to improve spectroscopic models and databases as well as to monitor green house gases at a regional level. To reach the required quantification of carbon dioxide or methane in the atmosphere, a sub percent accuracy is n ... more


Tuesday 19 December 2023      TUG

16:15 - 17:15

Physics-Consistent Methods in Theory, Computation and Inference of Plasma Particle Orbits and Classical Fields
Dr. Christopher Albert, Insitute of Theoretical and Computational Physics, Graz University of Technology

This talk is on the interplay of theoretical physics, computation and probabilistic inference. Theoretical physics seeks to understand physics phenomena by formulating laws in terms of mathematical objects. Computational physics makes numerical predictions based on discretized fo ... more


Tuesday 16 January 2024      KFU

16:15 - 17:15

Topological physics with light: Topological edge and corner modes in polariton lattices
Prof. Sebastian Klembt , Chair for Applied Physics, Julius-Maximilians-University Würzburg & Würzburg-Dresden Cluster of Excellence ct.qmat

Topological Photonics is an emerging field of research, adapting concepts from condensed matter physics to photonic systems adding new degrees of freedom. After the first demonstrations of topological photonic insulators, the field has moved on to study and exploit the inherent n ... more


Tuesday 23 January 2024      TUG

16:15 - 17:15

Correlative workflows to probe oxygen vacancies in functional oxides: from atomic site HAADF-STEM/EELS to synchrotron-based spectroscopies
Dr. Regina Ciancio, CNR-IOM Trieste, Italy

Complex oxides are fascinating systems which host a vast array of unique phenomena, such as high temperature (and unconventional) superconductivity, colossal magnetoresistance, all forms of magnetism and ferroelectricity, as well as (quantum) phase transitions and couplings betwe ... more