Controlled preparation of all high Tc SNS-type edge junctions and DC-SQUIDs

J. Gao, W.A.M. Aarnink, G.J. Gerritsma, H. Rogalla

Research output: Contribution to journalArticleAcademicpeer-review

133 Citations (Scopus)
119 Downloads (Pure)


High-Tc SNS-type Josephson junctions and DC SQUIDs were successfully fabricated using hetero-epitaxially grown multilayers of YBa2Cu3Ox and PrBa2Cu3Ox. These layers are c-axis oriented and hence edges of the multilayers give rise to a current flow in the ab-plane between the electrodes of a Josephson junction. The necessary structuring was done by Ar ion beam etching. The individual junctions exhibit a supercurrent up to 80 K. The IcRn-product of these junctions usually has a lower limit of 8 mV at 4.2 K. Voltage modulation of the first DC SQUIDs can be observed up to 66 K. Details on the fabrication and measurements are presented.
Original languageEnglish
Pages (from-to)126-130
Number of pages5
JournalPhysica C
Issue number1-2
Publication statusPublished - 1990

Fingerprint Dive into the research topics of 'Controlled preparation of all high <i>T<sub>c</sub></i> SNS-type edge junctions and DC-SQUIDs'. Together they form a unique fingerprint.

Cite this