Grp Quantum Condensed Matter Dynamics

Researchers in Hamburg have discovered that the ferroelectric polarization of lithium niobate (LiNbO₃) changes in areas well away from the direct ‘hit’ of a laser pulse, with the polarization reversal occurring throughout the entire crystal. The team’s study of this hitherto unknown phenomenon - called nonlocal nonlinear phononics - has been published in Nature Physics. more

MPSD researcher Ankit Disa has accepted a professorship at Cornell University in the United States. He will take up his new post as Assistant Professor of Applied and Engineering Physics at Cornell in July 2022. more

MPSD researchers discover a long-lived superconducting state in K₃C₆₀ at a temperature five times higher than the one at which superconductivity sets in without photoexcitation. This metastable state, produced with a new type of laser, lasts nearly 10.000 times longer than previously achieved. more

Scientists pioneer an approach called self-referenced streaking, clocking Auger electrons with sub-femtosecond resolution. The breakthrough will unlock the broader potential for attosecond time resolution at X-ray free-electron lasers.
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Researchers at the University of Oxford and the MPSD report in Physical Review Letters that a dynamical version of superconductivity, which is generated by periodically shaking the material, is intimately tied to strong electronic correlations and geometric frustration. more