Properties of stacked Nb/Al-AlOx/Nb tunnel junctions

I. P. Nevirkorvets; H. Kohlstedt; G. Hallmanns; C. Heiden

doi:10.1088/0953-2048/6/2/012

Properties of stacked Nb/Al-AlO_x/Nb tunnel junctions

I. P. Nevirkorvets^*, H. Kohlstedt, G. Hallmanns, C. Heiden

^*Corresponding author for this work

Research output: Contribution to journal › Article › peer-review

13 Scopus citations

Abstract

Successful fabrication of stacked Nb-(Al/AlO_x-Nb)_n superconducting tunnel junctions with n=3 is reported. Coupling effects are visible in the three measured Fraunhofer patterns of the individual junctions. One of the patterns always shows a considerable field spreading in comparison with the other two patterns, as if the corresponding junction area were much smaller. Negative resistance measured as a function of temperature between 4.2 K and 2 K, in the sum gap region of the I-V characteristics, indicates heating effects.

Original language	English (US)
Article number	012
Pages (from-to)	146-149
Number of pages	4
Journal	Superconductor Science and Technology
Volume	6
Issue number	2
DOIs	https://doi.org/10.1088/0953-2048/6/2/012
State	Published - 1993
Externally published	Yes

ASJC Scopus subject areas

Ceramics and Composites
Condensed Matter Physics
Metals and Alloys
Electrical and Electronic Engineering
Materials Chemistry

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10.1088/0953-2048/6/2/012

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abstract = "Successful fabrication of stacked Nb-(Al/AlOx-Nb)n superconducting tunnel junctions with n=3 is reported. Coupling effects are visible in the three measured Fraunhofer patterns of the individual junctions. One of the patterns always shows a considerable field spreading in comparison with the other two patterns, as if the corresponding junction area were much smaller. Negative resistance measured as a function of temperature between 4.2 K and 2 K, in the sum gap region of the I-V characteristics, indicates heating effects.",

author = "Nevirkorvets, {I. P.} and H. Kohlstedt and G. Hallmanns and C. Heiden",

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AU - Kohlstedt, H.

AU - Hallmanns, G.

AU - Heiden, C.

PY - 1993

Y1 - 1993

N2 - Successful fabrication of stacked Nb-(Al/AlOx-Nb)n superconducting tunnel junctions with n=3 is reported. Coupling effects are visible in the three measured Fraunhofer patterns of the individual junctions. One of the patterns always shows a considerable field spreading in comparison with the other two patterns, as if the corresponding junction area were much smaller. Negative resistance measured as a function of temperature between 4.2 K and 2 K, in the sum gap region of the I-V characteristics, indicates heating effects.

AB - Successful fabrication of stacked Nb-(Al/AlOx-Nb)n superconducting tunnel junctions with n=3 is reported. Coupling effects are visible in the three measured Fraunhofer patterns of the individual junctions. One of the patterns always shows a considerable field spreading in comparison with the other two patterns, as if the corresponding junction area were much smaller. Negative resistance measured as a function of temperature between 4.2 K and 2 K, in the sum gap region of the I-V characteristics, indicates heating effects.

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Properties of stacked Nb/Al-AlO_x/Nb tunnel junctions

Abstract

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