Tuesday, January 30th: Magnetic Skyrmions, Geometric Phase, and Mechanical Models

Event Date: 

Tuesday, January 30, 2018 - 5:15pm

Event Date Details: 

Pizza will be served after the seminar.

Event Location: 

  • Broida 3302

Event Contact: 

  • Special Physics Seminar

Skyrmions are topologically protected particle-like configurations of vector fields. Originally appearing as a mathematical model for baryons in particle physics, versions of these structures have been observed in numerous physical contexts ranging from quantum Hall systems to liquid crystals. In this talk, I will focus on two-dimensional magnetic skyrmions, which have tremendous potential for information technology applications. Indirect electrical detection of these skyrmions leads naturally to the concept of geometric phase in real space, the classical version of which I will illustrate with some mechanical models. These models serve a dual purpose in that their exact solutions may provide insight into the internal structure of skyrmions, which is known only approximately.

Brian Youngblood, UCSB