Electronic Resource
Woodbury, NY
:
American Institute of Physics (AIP)
Applied Physics Letters
56 (1990), S. 2575-2577
ISSN:
1077-3118
Source:
AIP Digital Archive
Topics:
Physics
Notes:
We have efficiently coupled single-level YBaCuO (YBCO) input coils to superconducting quantum interference devices (SQUIDs) using coils and SQUIDs made on separate substrates and sandwiched together. At 4.2 K, the coupling efficiency α to a low noise Nb-based SQUID was ∼0.76, with no increase in flux noise. At 77 K, the coupling efficiency of a YBCO coil to a TlBaCaCuO SQUID was ∼0.81. The magnetic field sensitivity of the coupled high Tc SQUID at 77 K was 9 pT/(square root of)Hz at 1000 Hz, a five times improvement compared to the bare SQUID.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1063/1.102846
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