Grp Quantum Condensed Matter Dynamics

Terahertz light pulses can stabilize ferromagnetism in YTiO₃ at temperatures more than three times its usual transition temperature. Researchers from the Cavalleri group report in Nature that the high-temperature ferromagnetic state persisted for many nanoseconds after the light exposure. more

Wiebke Kohlbrecher (20) has spent five weeks at the MPSD to learn at first hand about the day-to-day work of its researchers. She will complete three internships in total as part of the Hamburg-based ProTechnicale program which offers female school leavers an orientation year in STEM (Science, Technology, Engineering and Maths) occupations.  more

Bo Yuan, a postdoctoral researcher in Andrea Cavalleri’s Quantum Condensed Matter Dynamics group, has been awarded a Humboldt Research Fellowship. more

Researchers from the Cavalleri group report in PNAS that superconducting ‘stripes’ in certain copper-based compounds may lead to a break in the material’s crystal symmetry, thus resulting in anomalous emission of terahertz radiation. more

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