Hall tunneling of vortices

✍ Scribed by C.Morais Smith; B. Ivlev; G. Blatter

• Book ID: 103947213
• Publisher: Elsevier Science
• Year: 1994
• Tongue: English
• Weight: 184 KB
• Volume: 235-240
• Category: Article
• ISSN: 0921-4534
• DOI: 10.1016/0921-4534(94)91008-1

✦ Synopsis

The theory of an elastic string trapped in a metsstable state is developed in order to study classical and quantum creep of vortices. Whereas vortex tunneling is dissipative under conventional circumstances, in superclean 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 tilted 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).