Interactions between bicrystal Josephson junctions in a multilayer structure

Authors

H.Q. Li, Nat. Inst. of Stand. & Technol., Boulder, Colorado
R.H. Ono, Nat. Inst. of Stand. & Technol., Boulder, Colorado
L.R. Vale, Nat. Inst. of Stand. & Technol., Boulder, Colorado
D.A. Rudman, Nat. Inst. of Stand. & Technol., Boulder, Colorado
Sy_Hwang Liou, University of Nebraska-LincolnFollow

Date of this Version

June 1999

Comments

IEEE Trans. On Appl. Supercond. Vol. 9, 3417(1999). Copyright 1999. Permission to use.

Abstract

We have fabricate and studied a variety of devices based on stacked YBa₂Cu₃O_x bicrystal Josephson junctions in a multilayer structure. The proximity of the junctions in the two layers produces a large number of effects based on interactions between the junctions. Voltage locking and current locking were observed in the stacked junctions. The voltage locking is due to the ac path provided by a SrTiO₃ layer between the stacked junctions. The current locking is likely the result of a Josephson vortex interaction.