Experimental determination of the mass of a vortex in a superconducting film

TYPECondensed Matter Seminar
Speaker:Daniel Golubchik
Affiliation:The Technion
Organizer:M. Reznikov
Location:Lidow Nathan Rosen (300)
Remark:Ph.D. Seminar, Superviser: E. Polturak
Abstract:We have combined magneto-optical imaging with an ultra-fast
heating/cooling technique to measure the movement of individual
vortices in a superconducting film. The motion took place while
the film was heated close to Tc, where pinning and viscous
forces are relatively small. Under these conditions, the dominant
force is the magnetic repulsion between vortices. The extent of
the motion of individual vortices is consistent with a vortex mass
of few electronic masses per lattice constant at 0.97Tc.