Parameter optimization of separated-base layout for HTS SFQ circuits using interface-modified ramp-edge Josephson junctions

High-Yield Fabrication Method for High-$T_{\text{c}}$ Superconducting Quantum Interference Device Magnetometer with Integrated Multiturn Input Coil

“…8) In the case of the ramp-edge junction with a surface-modified barrier, I c largely depends on the nature of the barrier layer which is very sensitive to the growth temperature of the counter superconducting layer. 9,10) In particular, since the normalized temperature coefficient of the superconducting properties is large at 77 K which is very close to the T c of YBa 2 Cu 3 O y (YBCO), a small variation in a superconducting property of the HTS thin film will lead to a rather large spread of the junction properties.…”