Condensed Matter Journal Club: Micromagnetics & Some features of a hexagonal magnonic crystal
- Event Type
- Seminar/Symposium
- Sponsor
- Condensed Matter Journal Club
- Location
- ESB 3110
- Date
- Apr 16, 2025 3:00 pm
- Speaker
- Bobby Kaman (UIUC)
- Contact
- Amanda Gatto Lamas
- amandag6@illinois.edu
- Views
- 67
- Originating Calendar
- Physics - Condensed Matter Journal Club
I'll discuss spin waves and micromagnetism. I'll then discuss my work on a particularly simple magnonic crystal which supports some interesting excitations including graphene-analog spin waves. The lowest 9 bands turn out to be understandable from a tight-binding-like picture. To demonstrate the large degree of tunability the system has, I use it to realize some cool states like massless Jackiw-Rebbi domain wall spin waves and, in another part of the parameter space, chiral edge states in a magnonic Chern "insulator." Aside from fundamental interest, these states may actually be helpful in some rf devices.