Electronic behavior of spatially distributed junction small inductance dc pi-SQUIDs

As investigated theoretically [Annalen der Physik (Leipzig) 8 (1999) 511; P hys. B, in press] spatially distributed junction small inductance de pi -SQ UIDs exhibit unusual electric transport properties in both zero-voltage and voltage states. The purpose of this paper is to summarize the peculiaritie s of this electronic behavior in order to (a) reveal some of the advantages the device has over other known Josephson junctions based configurations w hen used as a tool to investigate the order parameter symmetry in high-T-c superconductors, and (b) to emphasize its potential for applications in sup erconducting electronics. (C) 2001 Elsevier Science B.V. All rights reserve d.