Interactions between bicrystal Josephson junctions in a multilayer structure

Author

Li, H.Q. ; Ono, R.H. ; Vale, L.R. ; Rudman, D.A. ; Liou, S.H.

Author_Institution

Nat. Inst. of Stand. & Technol., Boulder, CO, USA

Volume

9

Issue

2

fYear

1999

fDate

6/1/1999 12:00:00 AM

Firstpage

3417

Lastpage

3420

Abstract

We have fabricate and studied a variety of devices based on stacked YBa/sub 2/Cu/sub 3/O/sub 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 SrTiO/sub 3/ layer between the stacked junctions. The current locking is likely the result of a Josephson vortex interaction.

Keywords

Josephson effect; barium compounds; bicrystals; high-temperature superconductors; superconducting superlattices; yttrium compounds; SrTiO/sub 3/ layer; YBa/sub 2/Cu/sub 3/O; YBa/sub 2/Cu/sub 3/O/sub x/ bicrystal Josephson junction; current locking; multilayer structure; stacked junction; voltage locking; vortex interaction; Coupling circuits; Frequency; Josephson junctions; NIST; Niobium; Nonhomogeneous media; Superconducting epitaxial layers; Temperature measurement; Voltage; Yttrium barium copper oxide;

fLanguage

English

Journal_Title

Applied Superconductivity, IEEE Transactions on

Publisher

ieee

ISSN

1051-8223

Type

jour

DOI

10.1109/77.783763

Filename

783763