Welcome to the CRC 1242
Non-Equilibrium Dynamics of Condensed Matter in the Time Domain
Non-equilibrium states can be created in condensed matter through ultrashort pulsed external stimuli such as light, pressure, electrical voltage, or particles. This Collaborative Research Centre aims to achieve a material-specific, microscopic understanding of such non-equilibrium states. To this end, new tools in experimental and theoretical physics will be developed to describe the time evolution from the moment of the stimulus to a state close to equilibrium in time and space.
overview
Laser pulse in a far field modified by changes of the refractive index that results from the laser pulse itself.
Captured by: Ping Zhou (AG Bovensiepen)
Au(111) surface captured with a low energy electron microscope. On the Gold surface, small "hills" were seen that look like spring flowers in false colors.
Captured by: Pascal Dreher (AG Meyer zu Heringdorf)
AFM of atomically thin and triangular tungsten disulfide films deposited on sapphire, which look like a pyramid landscape.
Captured by: Dave Marnold & Erik Pollmann (AG Schleberger)
Two double quantum dots coupled by Coulomb interaction host coherent charge oscillations that are synchronized in frequency and phase.
Captured by: Eric Kleinherbers (AG König)
Negative curvature simulated in an analog model of an optical lattice with a central pentagonal disclination.
Captured by: Nikodem Szpak (AG Schützhold / AG König)
Electron density redistribution in a Fe/(MgO)3 (001) heterostructure upon a fs-laser excitation with a photon energy of 7.75 eV after 20 fs, simulated using real-time time-dependent DFT.
Captured by: Elaheh Shomali & Markus Gruner (AG Pentcheva)
"Dance around Center Spot" - STM image of an ordered surface alloy of Gold and Silver atoms on Si(111) creating a sill unresolved reconstruction.
Captured by: Christian Wiethoff & Michael Horn von Hoegen (AG Horn von Hoegen)
Graphene-based THz detector: the logarithmic-periodic antenna couples the THz radiation to a micrometer-sized graphene flake that is in the center of the antenna. The antenna with a diameter of 1 mm is patterned by electron-beam lithography, the substrate is semi-intrinsic SiC.
Captured by: Martin Mittendorff (AG Mittendorff)
View into a UHV chamber used for pulsed laser deposition. An invisible 248 nm laser is hitting a rotating SrTiO3 target, causing heated material to be ejected with a visible, bluish plasma plume, used to deposit thin films onto a heated substrate. The red hot surface of the substrate heater at 700°C is visible in the center, reflected on the back of the open shutter.
Captured by: Soma Salamon (AG Wende)
Electric field of a focused surface plasmon polariton wave packet. The electric field distribution was measured using polarimetric PEEM.
Captured by: Alexander Neuhaus (AG Meyer zu Heringdorf)
Microscope images of exfoliated hexagonal boron nitride flakes on a silicon dioxide wafer.
Captured by: Felix Schaumburg (AG Lorke)
Look into an UHV chamber, where the sample being irradiated with 530 nm light to check behavior under optical excitation.
Captured by: Tobias Lojewski (AG Wende)
The energy stored in the couplings between the environment and a quantum dot (exact-solution) as a function of time (horizontal axis -- energy scale of the bath electrons, vertical axis -- time). The plots show two different initial states.
Captured by: Lukas Litzba (AG König)
Fe(II) spin-crossover complex ([Fe(1-bpp-COOC2H5)2](BF4)2CH3CN) created by drop-casting a solution with Acetonitrile on a Si3N4 membrane.
Captured by: Lea Spieker (AG Wende)
RHEED images: 7×7 reconstruction of the silicum 111 surface.
Captured by: Jonas Fortmann (AG Horn-von Hoegen)
Pair amplitude as a function of the chemical potential and the detuning in the adiabatic limit. White lines mark the Andreev bound state energies.
Captured by: Markus Heckschen (AG Sothmann)
Tube furnace at maximum temperature.
Captured by: Lukas Kalkhoff (AG Schleberger)
Latest News
[06.10.2023] Research on attosecond pulses and quantum dots is honoured
[25.09.2023] Lea Kämmerer as female Physicist of the Week at the German Physical Society
[September 2023] GANIL PhD Award for Lukas Madauß
[August 2023] Instead of bella Napoli - bella Duisburg!
[August 2023] World record!
Latest publications
Claire Besson, Philipp Stegmann, Michael Schnee, Zeila Zanolli, Simona Achilli, Nils Wittemeier, Asmus Vierck, Robert Frielinghaus, Paul Kögerler, Janina Maultzsch, Pablo Ordejón, Claus M. Schneider, Alfred Hucht, Jürgen König and Carola Meyer
Independent and Coherent Transitions Between Antiferromagnetic States of Few-Molecule Systems
Phys. Rev. B 107, 245414 (2023)
Eric Kleinherbers, Alexander Schünemann and Jürgen König
Full Counting Statistics in a Majorana Single-Charge Transistor
Phys. Rev. B 107, 195407 (2023)
F. Schaumburg, S. Sleziona, M. Zöllner, V. Dergianlis, M. Schleberger, M. Geller, A. Lorke and G. Prinz
Enhanced Intensity of Raman Signals from Hexagonal Boron Nitride Films
Appl. Phys. Lett. 123, 073101 (2023)
Yujin Tong
Linear vs. Nonlinear Electrochemical Vibrational Stark Effect: Preconditions of the Approximation
Reference Module in Chemistry, Molecular Sciences and Chemical Engineering, ed. Jan Reedijk, pp. 750 (Amsterdam, 2024)
DOI: 10.1016/B978-0-323-85669-0.00073-8
Lukas Kalkhoff, Alexander Golombek, Marika Schleberger, Klaus Sokolowski-Tinten, Andreas Wucher and Lars Breuer
Path to Ion-Based Pump-Probe Experiments: Generation of 18 Picosecond keV Ne+ Ion Pulses from a Cooled Supersonic Gas Beam
Phys. Rev. Research 5, 033106 (2023)
Upcoming Events
| 21.11.2023 | Colloquium: Dr. Johannes Voss, SLAC |
| 28.11.2023 | Colloquium: Prof. Dr. Bärbel Rethfeld, RPTU Kaiserslautern-Landau |
| 09.01.2024 | Internal CRC meeting |
| 23.01.2024 | Dr. Hamoon Hedayat, Universität zu Köln |