Preparation and properties of all high Tc SNS-type edge DC SQUIDs

Gao, J. and Aarnink, W.A.M. and Gerritsma, G.J. and Veldhuis, D. and Rogalla, H. (1991) Preparation and properties of all high Tc SNS-type edge DC SQUIDs. IEEE Transactions on Magnetics, 27 (2 , Pa). pp. 3062-3065. ISSN 0018-9464

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Abstract:	High-Tc SNS-type Josephson junctions and DC SQUIDs were successfully fabricated using hetero-epitaxially grown multilayers of YBa2Cu3Ox and PrBa2 Cu3O. 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. The voltage modulation for various bias currents investigated at 4.2 K noise measurements were performed. Details on the fabrication and measurements are presented
Item Type:	Article
Copyright:	© 1991 IEEE
Faculty:	Science and Technology (TNW)
Research Group:	Low Temperatures - Biomagnetism (LT)
Link to this item:	http://purl.utwente.nl/publications/24259
Official URL:	http://dx.doi.org/10.1109/20.133856
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