TY - JOUR
T1 - Voltage modulation of high-Tc SQUIDs with step-edge junctions
AU - Jeng, J. T.
AU - Liu, Y. C.
AU - Yang, S. Y.
AU - Horng, H. E.
AU - Yang, H. C.
AU - Sung, H. H.
N1 - Funding Information:
*Supported by the National Science Council of R.O.C under grant No. NSC-89-2112-M-003-012 and No. NSC-89-2112-M-()02-029
PY - 2000/11
Y1 - 2000/11
N2 - We studied the V-I characteristics and the voltage modulation of washer-type step-edge YBa2C3uOy dc SQUIDs. It was found that the banks of the SQUID were composed of two junctions in series. The V-I curve can be fitted to the RSJ model with a sinusoidal current phase relation for the first grain-boundary junction while the second junction show a non-sinusoidal current phase relation. The V-Φ curves of SQUIDs can be characterized by the parameters of the first junctions if the SQUID is biased at I approx. Ic1 where Ic1 is the critical current of the first junction. The implications of the data are discussed.
AB - We studied the V-I characteristics and the voltage modulation of washer-type step-edge YBa2C3uOy dc SQUIDs. It was found that the banks of the SQUID were composed of two junctions in series. The V-I curve can be fitted to the RSJ model with a sinusoidal current phase relation for the first grain-boundary junction while the second junction show a non-sinusoidal current phase relation. The V-Φ curves of SQUIDs can be characterized by the parameters of the first junctions if the SQUID is biased at I approx. Ic1 where Ic1 is the critical current of the first junction. The implications of the data are discussed.
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U2 - 10.1016/S0921-4534(00)01379-4
DO - 10.1016/S0921-4534(00)01379-4
M3 - Conference article
AN - SCOPUS:0342961938
VL - 341-348 (IV)
SP - 2701
EP - 2702
JO - Physica C: Superconductivity and its Applications
JF - Physica C: Superconductivity and its Applications
SN - 0921-4534
T2 - International Conference on Materials and Mechanisms of Superconductivity High Temperature Superconductors VI
Y2 - 20 February 2000 through 25 February 2000
ER -