| 摘要 |
<p>A Josephson device comprises a first electrode layer (2) of a superconducting material and containing Nb therein as a constituent element, an overlayer (3) of a nitride of a refractory metal element provided on the first electrode layer, a barrier layer (4) of an insulating compound that contains the refractory metal element as a constituent element and acting as a barrier of a Josephson junction, the barrier layer being provided on the overlayer, and a second electrode layer (5) of a superconducting material and containing Nb therein as a constituent element, the second electrode layer being provided on the barrier layer. <IMAGE></p> |
