PATTERNING OF SUITABLE STRUCTURES FOR THE INVESTIGATION OF THE JOSEPHSON EFFECT IN YBA2CU3O7 PRBA2CU3O7 SUPERLATTICES/

The aim of our work is to investigate the Josephson effect in YBa2Cu3O 7-delta/PrBa2Cu3O7-delta superlattices. In the case of current flow al ong c axis direction the superlattice forms an array of artificial Jos ephson junctions where the YBa2Cu3O7-delta layers are the superconduct ing electrodes which are separated but Josephson coupled by the PrBa2C u3O7-delta sheets. In this paper we report on the preparation, charact erisation and patterning of the superlattices into suitable structures via standard photolithograpy and lift-off technique.