Intrinsic pinning of vortices in superconducting Nb/Cu multilayers grown by molecular beam epitaxy Article uri icon

abstract

  • Magnetic moment measurements by means of a torque magnetometer on niobium/copper multilayers grown in a molecular beam epitaxy system show a well-defined series of maxima at specific field strengths. They are observed only at small angles between the applied magnetic field and the superconducting layers. The fields at which they occur depend on the total thickness of the multilayer. The results can be explained by considering step by step how vortices enter the film when a field parallel to the film is continously increased. © 1993.

publication date

  • 1993-01-01