Vortex core deformation and stepper motor behavior in a superconducting ratchet

  title={Vortex core deformation and stepper motor behavior in a superconducting ratchet},
  author={Joris Van de Vondel and Vladimir N. Gladilin and Alejandro V. Silhanek and Werner Gillijns and Jacques Tempere and Jozef T. Devreese and Victor V. Moshchalkov},
We investigated experimentally the frequency dependence of a superconducting vortex ratchet effect by means of electrical transport measurements and modeled it theoretically using the time dependent Ginzburg-Landau formalism. We demonstrate that the high frequency vortex behavior can be described as a discrete motion of a particle in a periodic potential, i.e. the so called stepper motor behavior. Strikingly, in the more conventional low frequency response a transition takes place from an… Expand

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Stroboscopic phenomena in superconductors with dynamic pinning landscape
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