TY  - JOUR
AU  - Faley, Michael
AU  - Slobodchikov, V. Yu
AU  - Maslennikov, Yuri
AU  - Koshelets, V. P.
AU  - Dunin-Borkowski, Rafal
TI  - High-Tc dual-SQUIDs with Graphoepitaxial Step-Edge Junctions
JO  - IEEE transactions on applied superconductivity
VL  - 26
SN  - 1558-2515
CY  - New York, NY
PB  - IEEE
M1  - FZJ-2016-01714
SP  - 1 - 1
PY  - 2016
AB  - The microstructural and noise properties of serially connected high-Tc dc superconducting quantum interferometer devices (high-Tc dc SQUIDs) with step-edge Josephson junctions are studied. It is shown that the implementation of novel graphoepitaxial step-edge Josephson junctions on buffered MgO substrates helps to overcome poor reproducibility of conventional step-edge high-Tc Josephson junctions due to the self-arranged growth of two identical [100]-tilted 45° grain boundaries over a wide range of step heights. The use of such Josephson junctions in two serially connected SQUIDs that are directly coupled to a common pickup loop in a dual-SQUID configuration with current biasing of the individual SQUIDs results in a doubling of voltage swings and an improvement in magnetic field resolution of the sensors.
LB  - PUB:(DE-HGF)16
UR  - <Go to ISI:>//WOS:000401809500001
DO  - DOI:10.1109/TASC.2016.2515841
UR  - https://juser.fz-juelich.de/record/283032
ER  -