Four layer monolithic integrated high T c dc SQUID magnetometer
- 20 June 1994
- journal article
- research article
- Published by AIP Publishing in Applied Physics Letters
- Vol. 64 (25) , 3497-3499
- https://doi.org/10.1063/1.111252
Abstract
YBa2Cu3O7−x based monolithic integrated dc SQUID magnetometers, consisting of a dc SQUID integrated with a flux transformer on a single bicrystalline substrate, have been fabricated and characterized. The devices consist of four layers, including two superconducting layers, and first realizations operate up to 73 K. A maximum voltage modulation of 32 μV is observed at 40 K. A field sensitivity of 0.17 pT/√Hz is obtained above 200 Hz at 45 K and 0.49 pT/√Hz at 1 Hz and 65 K.Keywords
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