High temperature superconducting Josephson junctions in a stacked bicrystal geometry

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

doi:10.1063/1.119746

High temperature superconducting Josephson junctions in a stacked bicrystal geometry

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

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Abstract

Bicrystal grain boundary Josephson junctions were fabricated in a stack of two layers of YBa₂Cu₃O_x separated by epitaxial SrTiO₃. Weak link behavior was observed in the bridges formed in both layers that had similar shunted-junction characteristics but significantly different critical currents. Characteristic voltages up to 1.9 mV were measured at 4.5 K. The resonant structure was seen in the current-voltage characteristics of the upper-layer junctions, and interactions between junctions in the two layers were evident.

Original language	English (US)
Pages (from-to)	1121-1123
Number of pages	3
Journal	Applied Physics Letters
Volume	71
Issue number	8
DOIs	https://doi.org/10.1063/1.119746
State	Published - Aug 25 1997

ASJC Scopus subject areas

Physics and Astronomy (miscellaneous)

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abstract = "Bicrystal grain boundary Josephson junctions were fabricated in a stack of two layers of YBa2Cu3Ox separated by epitaxial SrTiO3. Weak link behavior was observed in the bridges formed in both layers that had similar shunted-junction characteristics but significantly different critical currents. Characteristic voltages up to 1.9 mV were measured at 4.5 K. The resonant structure was seen in the current-voltage characteristics of the upper-layer junctions, and interactions between junctions in the two layers were evident.",

author = "Li, {H. Q.} and Ono, {R. H.} and Vale, {L. R.} and Rudman, {D. A.} and Liou, {S. H.}",

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AU - Li, H. Q.

AU - Ono, R. H.

AU - Vale, L. R.

AU - Rudman, D. A.

AU - Liou, S. H.

PY - 1997/8/25

Y1 - 1997/8/25

N2 - Bicrystal grain boundary Josephson junctions were fabricated in a stack of two layers of YBa2Cu3Ox separated by epitaxial SrTiO3. Weak link behavior was observed in the bridges formed in both layers that had similar shunted-junction characteristics but significantly different critical currents. Characteristic voltages up to 1.9 mV were measured at 4.5 K. The resonant structure was seen in the current-voltage characteristics of the upper-layer junctions, and interactions between junctions in the two layers were evident.

AB - Bicrystal grain boundary Josephson junctions were fabricated in a stack of two layers of YBa2Cu3Ox separated by epitaxial SrTiO3. Weak link behavior was observed in the bridges formed in both layers that had similar shunted-junction characteristics but significantly different critical currents. Characteristic voltages up to 1.9 mV were measured at 4.5 K. The resonant structure was seen in the current-voltage characteristics of the upper-layer junctions, and interactions between junctions in the two layers were evident.

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High temperature superconducting Josephson junctions in a stacked bicrystal geometry

Abstract

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