- Full text PDF available (1)
- This year (0)
- Last 5 years (4)
- Last 10 years (5)
Journals and Conferences
Self-organized electronically ordered phases are a recurring feature in correlated materials, resulting in, for example, fluctuating charge stripes whose role in high-TC superconductivity is under debate. However, the relevant cause-effect relations between real-space charge correlations and low-energy excitations remain hidden in time-averaged studies.… (More)
We present the first ultrafast mid-infrared study of charge and spin-ordered nickelates. A multi-component dynamics is observed, evidencing the femtosecond decay and formation of the low-energy pseudogap in the optical conductivity.
We measure dynamics of the helical ordering in the Lanthanide metal Dy resulting from transient changes in the conduction electron Fermi surface and subsequent scattering events that transfer the excitation to the core spin.
We study the low-energy conductivity dynamics after femtosecond perturbation of the stripe-ordered phase in a strongly-correlated nickelate. The experiments reveal ultrafast suppression and recovery of electron-phonon coupling that tracks the atomic-scale localization of correlated charges.
We study the skyrmion structure in Cu<sub>2</sub>OSeO<sub>3</sub> using resonant x-ray spectroscopy. The skyrmion structure shows long range fluctuations of ferrimagnetic ordering, and above-gap optical excitation reduces the magnetic ordering on a 40 picosecond timescale.