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Digitale Medien

Measurement of the spatial distribution of the maximum Josephson current in superconducting tunnel junctions (1987)

Bosch, J. ; Gross, R. ; Koyanagi, M. ; [weitere]

Springer

Journal of low temperature physics 68 (1987), S. 245-268

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Details

ISSN: 1573-7357

Quelle: Springer Online Journal Archives 1860-2000

Thema: Physik

Notizen: Abstract The spatial distribution of the maximum Josephson current densityJ max is imaged in quasi-one-dimensional in-line tunnel junctions by scanning the junction surface with an electron beam and by recording the beam-induced change ofI max as a function of the coordinates of the beam focus. In addition to the modulation of the Josephson current density for the different vortex states, the nonlocal effect resulting from the beam-induced change of the phase-difference function is observed. The results are in good agreement with the theoretical predictions. The electron beam scanning technique also serves well for imaging inhomogeneities in the barrier or in the electrodes of the junction.

Materialart: Digitale Medien

URL: http://dx.doi.org/10.1007/BF00683901

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