Emergent phenomena in nanosculpted devices of quantum materials
CPfS Seminar
- Datum: 27.11.2025
- Uhrzeit: 15:00
- Vortragende(r): Max Birch
- RIKEN Center for Emergent Matter Science
- Ort: MPI CPfS
- Raum: Seminar rooms 1-2 hybrid
- Gastgeber: C. Donnelly
Focused ion beam (FIB) fabrication methods enable precise nanoscale devices to be fashioned from high-quality single crystalline materials, ideal for exploring magnetic textures and nonlinear transport phenomena. In this talk, I will detail and explain the methodology and rationale behind the various FIB device designs I have utilised to investigate emergent functionality in a wide range of quantum materials, including p-wave magnets, skyrmions and time-reversal symmetry breaking antiferromagnets.
I will then highlight my development of the FIB
fabrication of three dimensional single crystalline nanostructures, in the form
of helical-shaped devices of the high-mobility Weyl magnet Co3Sn2S2. By
breaking inversion symmetry on the length scale of the electron mean free path,
we observe large nonreciprocal transport, resulting in a switchable diode
effect.
Meeting link:
https://mpi-cpfs.webex.com/mpi-cpfs/j.php?MTID=me963ad91427b567e655a436004d95a8d
Meeting number:
2743 604 7491
Meeting password:
55hzVJPuMX7