A double DC-SQUID device for flux locked loop operation
作者： V. Foglietti , M.E. Giannini , G. Petrocco
DOI: 10.1109/20.133839
关键词:
摘要: A novel double DC SQUID device has been developed. It consists of two SQUIDs in a cascade configuration with the same electrical parameters but different geometry. This structure makes particularly suitable for flux-locked-loop operation without need modulation flux. Consequently readout electronic scheme is greatly simplified degrading noise performance first stage. The gradiometer extra damping resistors shunting inductance. technology used similar to seven-layer IBM process planar Nb-Nb/sub 2/O/sub 5/-PbAuIn junctions and 2.5- mu m minimum size lithography.
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