Transport properties of curved mesoscopic superconducting strips are investigated in the framework of the time-dependent Ginzburg–Landau formalism. The geometries of the superconducting strips considered here are either a section of a cylindrical shell or a full cylindrical shell in which the magnetic field is applied perpendicular to the axis. The cylindrical section can exhibit considerably asymmetric transport properties, making it potentially interesting as a sub-micrometer scale superconducting current rectifier. The full cylindrical surface exhibits well developed dissipative branches in the voltage–current curves, that can be accounted for by kinematic vortex–antivortex phase slip lines. Such kinds of phase slip lines cause voltage oscillations in a frequency range higher than the one associated with the familiar flux flow regime.
Magneto-transport properties of curvedmesoscopic superconducting strips
SABATINO, PAOLO;CARAPELLA, Giovanni;COSTABILE, Giovanni
2011-01-01
Abstract
Transport properties of curved mesoscopic superconducting strips are investigated in the framework of the time-dependent Ginzburg–Landau formalism. The geometries of the superconducting strips considered here are either a section of a cylindrical shell or a full cylindrical shell in which the magnetic field is applied perpendicular to the axis. The cylindrical section can exhibit considerably asymmetric transport properties, making it potentially interesting as a sub-micrometer scale superconducting current rectifier. The full cylindrical surface exhibits well developed dissipative branches in the voltage–current curves, that can be accounted for by kinematic vortex–antivortex phase slip lines. Such kinds of phase slip lines cause voltage oscillations in a frequency range higher than the one associated with the familiar flux flow regime.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
