Impurity effects in rf O2plasma oxidation for Pb‐alloy Josephson junctions

1986 ◽  
Vol 59 (5) ◽  
pp. 1696-1701 ◽  
Author(s):  
Junichi Nakano ◽  
Masato Wada
Keyword(s):  
Josephson Junctions ◽  
Impurity Effects

Hydrogen-impurity-induced conductance peaks in constriction type Josephson junctions

2021 ◽  
Author(s):  
Kazuki Miyakawa ◽  
Hiroki Takata ◽  
Taishi Yamaguchi ◽  
Yuji Inagaki ◽  
Kazumasa Makise ◽  
...  
Keyword(s):  
Temperature Variation ◽  
Josephson Junctions ◽  
Andreev Reflection ◽  
Josephson Current ◽  
Differential Conductance ◽  
Superconducting Gap ◽  
Impurity Effects ◽  
Hydrogen Impurity ◽  
Multiple Andreev Reflection

Abstract We studied hydrogen (H) and deuterium (D) impurity effects of superconducting Josephson current flowing through the superconductor-constriction-superconductor Josephson junctions (ScS-JJ). When H or D impurities are adsorbed on the surface of the ScS-JJ prepared by niobium (Nb) or lead (Pb), many spike-like peaks with almost the same spacing appear inside the superconducting gap in addition to anomalies owing to the multiple Andreev reflection in the differential conductance spectra. The spacing between the adjacent peaks is independent of the temperature variation. These indicate that H or D impurities adsorbed on the JJ are sources of noise for the Josephson current.

Low-Tcramp-type Josephson junctions for SQUIDS

2002 ◽  
Vol 12 (3) ◽  
pp. 133-136 ◽  
Author(s):  
M. Podt ◽  
B. G.A. Rolink ◽  
J. Flokstra ◽  
H. Regalia
Keyword(s):  
Josephson Junctions

Application of silicon substrates for high-Tc Josephson junctions and SQUIDs

1998 ◽  
Vol 08 (PR3) ◽  
pp. Pr3-297-Pr3-300 ◽  
Author(s):  
S. Linzen ◽  
Y. J. Tian ◽  
U. Hübner ◽  
F. Schmidl ◽  
J. Scherbel ◽  
...  
Keyword(s):  
Josephson Junctions ◽  
Silicon Substrates ◽  
High Tc

Intrinsic Josephson junctions formed inside ultra-thin BSCCO single crystals

2006 ◽  
Vol 20 (2) ◽  
pp. S28-S33 ◽  
Author(s):  
A Yurgens ◽  
L X You ◽  
M Torstensson ◽  
D Winkler
Keyword(s):  
Single Crystals ◽  
Josephson Junctions ◽  
Intrinsic Josephson Junctions

scholarly journals Tunneling characteristics for nm-thick mesas consisting of a few intrinsic Josephson junctions

2008 ◽  
Vol 129 ◽  
pp. 012033 ◽  
Author(s):  
Minoru Suzuki ◽  
Masayuki Ohmaki ◽  
Ryota Takemura ◽  
Kenji Hamada ◽  
Takao Watanabe ◽  
...  
Keyword(s):  
Josephson Junctions ◽  
Intrinsic Josephson Junctions
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