Proceedings of the Second European Workshop on Low Temperature Electronics
J. Phys. IV France 06 (1996) C3-295-C3-300
Vortex Interactions in 2 x 2 Antidot ClustersT. Puig1, E. Rosseel1, L. Van Look1, M. Baert1, M.J. Van Bael1, R. Jonckheere2, V.V. Moshchalkov1 and Y. Bruynseraede1
1 Laboratorium voor Vaste-Stoffysica en Magnetisme, K.U. Leuven, 3001 Leuven, Belgium
2 Interuniversity Micro-Electronics Center, Kapeldreef 75, 3001 Leuven, Belgium
Vortex pinning effects by artificial antidots have been studied in superconducting 2 x 2 antidot clusters of W1-xGex (x≈0.33) and Pb/Cu. These effects have been observed as several minima appearing in the magnetoresistance close to the transition temperature in magnetic fields between 0 and 100 G. Vortex configurations with one and two flux quanta per antidot and their related half-filling configurations have been found showing that different well controlled stable vortex configurations can be realised by tuning the magnetic field.
© EDP Sciences 1996