5 papers
Quantifying thermal and driven magnon populations with femtosecond noise correlation spectroscopy
F. S. Herbst, M. A. Weiss, A. Leitenstorfer +5
Precise knowledge of the total number of magnons, including both coherent and incoherent (e.g. thermal) excitations, is imperative for the advancement of fundamental spin-wave phys…
From Film to Flakes: Electronic Properties and Magnetization Variations in Yttrium Iron Garnet
Pia M. Düring, Seema, Roman Hartmann +7
Yttrium iron garnet (YIG) is a ferrimagnetic insulator valued for its high Curie temperature, very low magnetic damping, and ability to support long-range spin-wave transport. Thes…
Field-tuning of ultrafast magnetization fluctuations in SmErFeO
Marvin Alexander Weiss, Julius Schlegel, Daniel Anić +7
The properties of spin fluctuations in antiferromagnets are largely unexplored, in particular at ultrafast timescales. Here, we employ femtosecond noise correlation spectroscopy (F…
Magnetic aftereffect and Barkhausen effect in thin films of the altermagnetic candidate Mn5Si3
Gregor Skobjin, Javier Rial, Sebastian Beckert +6
Altermagnetism as a third distinct type of collinear magnetic ordering lately attracts vivid attention. We here study the Hall effect response of micron-scale Hall bars patterned i…
Subharmonic lock-in detection and its optimisation for femtosecond noise correlation spectroscopy
M. A. Weiss, F. S. Herbst, S. Eggert +4
Although often viewed as detrimental, fluctuations carry valuable information about the physical system from which they emerge. Femtosecond noise correlation spectroscopy (FemNoC)…