ISSN:
1434-6036
Keywords:
PACS. 74.72.-h High-Tc compounds - 74.80.Fp Point contacts; SN and SNS junctions - 66.30.Qa Electromigration
Source:
Springer Online Journal Archives 1860-2000
Topics:
Physics
Notes:
Abstract: The influence of electric fields and currents has been investigated in the high- superconductors YBaCuO and BiSrCaCuO using a point-contact geometry with Ag as the counterelectrode, which reveal switching transitions between states of a different resistance. The origin of this effect in point contacts is associated with electromigration of the oxygen, driven by the electric field as well as by the current-induced “electron wind”. The switching effect preserves its basic features at elevated temperatures up to room temperature and in high magnetic fields up to 10 T.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1007/s100510050876
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