Abstract
Pair-tunneling measurements have been carried out on ErRh4B4-LuxOy-In thin-film junctions. The Fraunhofer-like pattern of the magnetic-field dependence of the dc Josephson current has been found to split at a temperature just above the reentrant transition of ErRh4B4. This suggests the onset of a magnetic structure of semimacroscopic scale which does not break up the superconductivity of the ErRh4B4 electrode into disconnected domains, at least within the surface region probed (∼ 150).
Original language | English (US) |
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Pages (from-to) | 1433-1436 |
Number of pages | 4 |
Journal | Physical Review Letters |
Volume | 48 |
Issue number | 20 |
DOIs | |
State | Published - Jan 1 1982 |