SIS junctions with frequency dependent damping for a programmable Josephson voltage standard
نویسندگان
چکیده
Experimental and computational results on programmable Josephson junction array (JJA) chips based on superconductor-insulator-superconductor (SIS) junctions are presented. Implications of circuit design and fabrication process on the performance are discussed. We introduce a method to decrease the attenuation of the pump microwave. Different designs are compared, suggesting that 1 V chips operating at the third constant voltage step with 70 GHz pump frequency can be produced with our process.
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ورودعنوان ژورنال:
- IEEE Trans. Instrumentation and Measurement
دوره 50 شماره
صفحات -
تاریخ انتشار 2001