Download or read book Influence of a Perpendicular Magnetic Field on the Thermal Depinning of a Single Abrikosov Vortex in a Superconducting Josephson Junction written by Dimitris Kouzoudis and published by . This book was released on 1998 with total page 174 pages. Available in PDF, EPUB and Kindle. Book excerpt: Thermal depinning of a single vortex trapped in a superconducting Josephson junction is studied as a function of an external magnetic field perpendicular to the junction, in order to examine the conditions necessary for establishing a vortex free junction. If a thick normal metal barrier is used in a cross-strip SNIS Josephson junction, then a single vortex can be nucleated in one of the superconducting strips and systematically moved from one location to another. The location of the vortex can be determined because there is a unique connection between the location of the vortex in the junction and the Fraunhofer-like diffraction pattern of the junction. In zero applied field, it was found that the superconducting order parameter [Delta]/[Delta0], when the vortex depins and starts to move around the film at 8.804 K is equal to 0.19.