Events
Past events can be found in the archive.
Internal users can find the list of upcoming seminar presentations and the seminar dates to be booked in the E134 Colab Space., opens an external URL in a new window
02. December 2025, 16:00 until 17:00
Sebastian Wintz, Institute for Nanospectroscopy, Helmholtz-Zentrum Berlin, Germany
Seminar
The investigation of spin-wave phenomena—magnonics—plays an increasingly central role in modern condensed-matter research [1]. Spin waves are considered promising signal carriers for next-generation spintronic information-processing devices, with the potential to surpass charge-based technologies in both energy efficiency and device miniaturization. A key challenge on this path is the generation, control, and detection of spin waves with nanoscale wavelengths.
In this talk, I will show how time-resolved x-ray microscopy enables direct imaging of nanoscale spin dynamics. Using this technique, it has been demonstrated that ferromagnetic spin textures—particularly vortex cores and domain walls—can act as nanoscale spin-wave emitters and waveguides [2–5]. I will further discuss recent advances in x-ray imaging of spin-wave dynamics in ferrimagnetic and antiferromagnetic materials, as well as emerging approaches for probing three-dimensional magnetic systems [6].
[1] A. V. Chumak et al., IEEE Trans. Magn. 56, 0800172 (2022).
[2] S. Wintz et al., Nat. Nanotech. 11, 948 (2016).
[3] V. Sluka et al., Nat. Nanotech. 14, 328 (2019).
[4] R. A. Gallardo et al. ACS nano 18, 5249 (2024).
[5] S. Mayr et al. Appl. Phys. Rev. 11, 041411 (2024).
[6] S. Koraltan et al. Adv. Funct. Mater. e15338 (2025).
Event details
- Event location
-
SEM.R. DB gelb 05 B
1040 Wien
Wiedner Hauptstraße 8-10/E134 - Organiser
-
IAP
Manuela Marik
marik@iap.tuwien.ac.at - Public
- Yes
- Entrance fee
- No
- Registration required
- No