5 papers
Spin-noise spectroscopy as a tool for probing magnetic order
Julius Schlegel, Martin Evers, Ulrich Nowak
Spin noise spectroscopy is a technique to measure magnetization fluctuations, a subject of increasing relevance in ultrafast spintronics. We investigate numerically the equilibrium…
Magnetic nutation: transient separation of magnetization from its angular momentum
Anulekha De, Julius Schlegel, Akira Lentfert +6
For nearly 90 years, precession and relaxation processes have been thought to dominate magnetization dynamics. Only recently has it been considered that, on short time scales, an i…
Magnetization fluctuations and magnetic aftereffect probed via the anomalous Hall effect
Nadine Nabben, Giacomo Sala, Ulrich Nowak +2
Taking advantage of the anomalous Hall effect, we electrically probe low-frequency magnetization fluctuations at room temperature in a thin ferromagnetic Pt/Co/AlO layer stack…
Exploring the impact of the inverse Faraday effect on all-optical helicity-dependent magnetization switching
M. Kohlmann, L. Vollroth, K. Jäckel +7
All-optical helicity-dependent magnetization switching (AO-HDS) is the quickest data recording technique using only ultrashort laser pulses. FePt grains provide an ideal platform f…
Dynamical renormalization of the magnetic excitation spectrum via high-momentum nonlinear magnonics
Christoph Schoenfeld, Lennart Feuerer, Julian Bär +9
Controlling macroscopic properties of quantum materials requires the ability to induce and manipulate excited states. The set of collective excitations of a solid is encoded in its…