Magnetically modulated microwave absorption in the organic superconductor. kappa. -(BEDT-TTF) sub 2 Cu(NCS) sub 2 (where BEDT-TTF is bis(ethylenedithio)tetrathiafulvalene)

Magnetically modulated microwave absorption is used to investigate superconductivity in a {kappa}-(BEDT-TTF){sub 2}Cu(NCS){sub 2} single crystal with {ital T}{sub {ital c}}(40 G)=8.6 K. Evidence is presented for the presence of two different types of oriented weak links in this material, one of which is an array of oriented Josephson junctions coupling the conduction planes.