Characteristics of Au/Ba/sub 1-x/K/sub x/BiO/sub 3//SrTiO/sub 3/(Nb) superconducting-base transistor

An Au/natural-barrier Ba/sub 1-x/K/sub x/BiO/sub 3/ (BKBO)/niobium-doped SrTiO/sub 3/ superconducting-base three-terminal device has been fabricated and tested. BKBO thin film was sputtered to create a base layer on the