Unconventional Vortex Dynamics in Mesoscopic Superconducting Corbino Disks

Details Unconventional Vortex Dynamics in Mesoscopic Superconducting Corbino Disks Unconventional Vortex Dynamics in Mesoscopic Superconducting Corbino Disks

2009-07-27

arxiv.org/abs/0907.4708v1

Phys. Rev. Lett. 102, 197003 (2009)

Physics

Condensed Matter

Superconductivity

4 pages, 3 figures

Scientific paper

10.1103/PhysRevLett.102.197003

The discrete shell structure of vortex matter strongly influences the flux dynamics in mesoscopic superconducting Corbino disks. While the dynamical behavior is well understood in large and in very small disks, in the intermediate-size regime it occurs to be much more complex and unusual, due to (in)commensurability between the vortex shells. We demonstrate unconventional vortex dynamics (inversion of shell velocities with respect to the gradient driving force) and angular melting (propagating from the boundary where the shear stress is minimum, towards the center) in mesoscopic Corbino disks.

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