Hall tunneling of vortices Article uri icon

abstract

  • The theory of an elastic string trapped in a metastable state is developed in order to study classical and quantum creep of vortices. Whereas vortex tunneling is dissipative under conventional circumstances, in super-clean superconductors the dynamics is governed by a Hall force. Calculations are performed including both, Hall and dissipative contributions. The crossover temperature between thermal and quantum regimes is determined for two typical cases, a slightly titled periodic potential (small driving force) and near to criticality. The model describes the classical and quantum creep of a single vortex in a layered superconductor with a magnetic field applied parallel to the CuO planes (intrinsic pinning configuration). © 1994.

publication date

  • 1994-01-01