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

As investigated theoretically Annalen der Physik (Leipzig) 8 (1999) 511; Phys. B, in press] spatially distributed junction small inductance dc π-SQUIDs exhibit unusual electric transport properties in both zero-voltage and voltage states. The purpose of this paper is to summarize the peculiarities of this electronic behavior in order to (a) reveal some of the advantages the device has over other known Josephson junctions based configurations when used as a tool to investigate the order parameter symmetry in high-T_c superconductors, and (b) to emphasize its potential for applications in superconducting electronics.