Macroscopic quantum phenomena in point contacts with high-Tc superconducting material

A.Th.A.M. de Waele, R.T.M. Smokers, R.W. van der Heijden, K. Kadowaki, Y.K. Huang, M. van Sprang, A.A. Menovsky

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Abstract

Relationships between current, voltage, and magnetic field of tin-YBa2Cu3O9-yand YBa2Cu3O9-y-YBa2Cu3O9-ypoint contacts have been determined. In both cases macroscopic quantum phenomena have been observed, in the form of periodic dependences of the voltage (at constant applied current) on the magnetic field, which are typical for double point contacts (d.c. SQUID's). With YBa2Cu3O9-y-YBa2Cu3O9-ycontacts oscillations have been observed up to 66 K.

Original languageEnglish
Pages (from-to)840-842
Number of pages3
JournalPhysica Scripta
Volume37
Issue number5
DOIs
Publication statusPublished - 1 May 1988

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