Abstract
We have measured the magnetic field dependence of the supercurrent in micron-size medium and high current density superconducting-normal- superconducting Nb-Au-Nb Josephson junctions. We find good quantitative agreement between the experiment and a theory for the distributed Josephson effect in such junctions. For finite bias voltages, high current density junctions show a monotonic decrease in the effective critical current with increasing field in sharp contrast to the resistively shunted junction model which predicts the well-known Fresnel-type behavior. Our medium current density junctions represent an intermediate case, residual Fresnel behavior is observed at small bias voltages, but a monotonic decrease with the field is observed for higher bias voltages.
| Original language | English (US) |
|---|---|
| Pages (from-to) | 7073-7077 |
| Number of pages | 5 |
| Journal | Journal of Applied Physics |
| Volume | 54 |
| Issue number | 12 |
| DOIs | |
| State | Published - 1983 |
| Externally published | Yes |
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ASJC Scopus subject areas
- Physics and Astronomy (miscellaneous)
- Physics and Astronomy(all)
Cite this
Experimental investigation of the magnetic behavior of superconducting- normal-superconducting Josephson junctions. / Bures, K.; Barnes, Stewart; Baberschke, K.
In: Journal of Applied Physics, Vol. 54, No. 12, 1983, p. 7073-7077.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Experimental investigation of the magnetic behavior of superconducting- normal-superconducting Josephson junctions
AU - Bures, K.
AU - Barnes, Stewart
AU - Baberschke, K.
PY - 1983
Y1 - 1983
N2 - We have measured the magnetic field dependence of the supercurrent in micron-size medium and high current density superconducting-normal- superconducting Nb-Au-Nb Josephson junctions. We find good quantitative agreement between the experiment and a theory for the distributed Josephson effect in such junctions. For finite bias voltages, high current density junctions show a monotonic decrease in the effective critical current with increasing field in sharp contrast to the resistively shunted junction model which predicts the well-known Fresnel-type behavior. Our medium current density junctions represent an intermediate case, residual Fresnel behavior is observed at small bias voltages, but a monotonic decrease with the field is observed for higher bias voltages.
AB - We have measured the magnetic field dependence of the supercurrent in micron-size medium and high current density superconducting-normal- superconducting Nb-Au-Nb Josephson junctions. We find good quantitative agreement between the experiment and a theory for the distributed Josephson effect in such junctions. For finite bias voltages, high current density junctions show a monotonic decrease in the effective critical current with increasing field in sharp contrast to the resistively shunted junction model which predicts the well-known Fresnel-type behavior. Our medium current density junctions represent an intermediate case, residual Fresnel behavior is observed at small bias voltages, but a monotonic decrease with the field is observed for higher bias voltages.
UR - http://www.scopus.com/inward/record.url?scp=0020902651&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=0020902651&partnerID=8YFLogxK
U2 - 10.1063/1.331974
DO - 10.1063/1.331974
M3 - Article
AN - SCOPUS:0020902651
VL - 54
SP - 7073
EP - 7077
JO - Journal of Applied Physics
JF - Journal of Applied Physics
SN - 0021-8979
IS - 12
ER -