The Josephson effect in contacts between the spin-triplet superconductor Sr2RuO4 and conventional superconductors

Crystal growth of the new Sr2RuO4–Sr3Ru2O7 eutectic system by a floating-zone method

“…For this reason, a number of tunneling and proximity effect experiments have been performed. However, all such experiments failed to show conclusive evidence [13][14][15] for odd parity. A broad class of experiments in which unconventional superconductivity was probed by studying the currentvoltage characteristics of interfaces of metal-superconductor, metal-insulator-superconductor and superconductor-insulator-superconductor junctions, all tried on Sr 2 RuO 4 , gave mixed results.…”

Josephson current ins-wave-superconductor/Sr2RuO4junctions

“…38 So far the transport properties in junctions consisting of SRO and s-wave superconductors or normal metals have been studied in both theories [53][54][55][56][57][58] and experiments. [59][60][61][62] The effect of spin-orbit coupling, where it had been taken into account, was introduced in the form of effective matrix elements only without the care of a detailed microscopic model for their origin. Here, we will consider a model that explicitly introduces spin-orbit coupling as an interface effect and allows us to study the symmetry related issues of the interface by direct variation of coupling parameters.…”

Point-Contact Tunneling Involving Low-Dimensional Spin-Triplet Superconductors

“…Our considerations could be extended to the case of the layered compounds believed to be triplet superconductors [4]. Among them, Sr 2 RuO 4 is the best studied so far, but only few tunneling experiments were performed [21,22,23,24,25], and none so far with good resolution in the presence of an applied external magnetic field to observe Zeeman effects. One of the conspicuous features observed in some of these experiments is the presence of a zero-bias anomaly in the differential conductance.…”