Abstract
Using the BCS approach and a tightbinding description of the band structure, we explore some superconducting properties of layered superconductors. Particular emphasis is devoted to the interlayer pairing interaction g3. Negative values of g3 lead to a staggered order parameter, having alternating signs from layer to layer, while g3 positive leads to one sign only. Adopting a superconducting loop, interrupted by a multilayer, it is shown that the sign of g3 can be determined experimentally. The same holds for a DC SQUID configuration, consisting of two multilayer Josephson junctions in a loop, and for an AC SQUID.
| Original language | British English |
|---|---|
| Pages (from-to) | 228-234 |
| Number of pages | 7 |
| Journal | Physica C: Superconductivity and its applications |
| Volume | 210 |
| Issue number | 1-2 |
| DOIs | |
| State | Published - 15 May 1993 |