Memory effects in response functions of driven vortex matter
Department of Mathematics, Imperial College 180 Queen's Gate,
London SW7 2BZ, UK
2 Università di Napoli “Federico II”, Dipartimento di Scienze Fisiche INFM and INFN - Via Cintia, 80126 Napoli, Italy
Accepted: 9 November 2001
Vortex flow in driven type-II superconductors shows strong memory- and history-dependent effects. Here, we study a schematic microscopic model of driven vortices to propose a scenario for a broad set of this kind of phenomena ranging from rejuvenation and stiffening of the system response, to memory and irreversibility in I-V characteristics.
PACS: 05.50.+q – Lattice theory and statistics (Ising, Potts, etc.) / 75.10.-b – General theory and models of magnetic ordering / 47.32.Cc – Vortex dynamics
© EDP Sciences, 2002