"Magnetic skyrmions and their applications"Hamed Vakili , University of Virginia - Department of Physics [Host: Avik Ghosh]
ABSTRACT:
Skyrmions are topologically protected magnetic quasi-particles. An isolated skyrmion is a metastable state of ferromagnet. The metastable state of skyrmions has a finite lifetime at non zero temperature which depends on energy barrier and attempt frequency. Materials with different symmetry groups can support different kinds of skyrmions (Bloch, Neel, Anti-skyrmion). We will see how these different types of symmetries can be used to control movements of a skyrmion. Skyrmion and domain wall racetracks can be used for temporal memories in race logic. Locally synchronized racetracks can spatially store relative timings of wavefronts and provide non-destructive read-out. |
Condensed Matter Seminar Thursday, April 16, 2020 3:30 PM , Room via Zoom Note special room. Join Zoom Meeting:https://virginia.zoom.us/j/96102363843Meeting ID:961-0236-3843Password: 32572 |
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