TY - JOUR
T1 - Characteristics of the superconducting-quantum-interference-grating magnetometer consisting of grain-boundary Josephson junctions
AU - Jeng, J. T.
AU - Huang, K. H.
AU - Wu, C. H.
AU - Chen, K. L.
AU - Chen, J. C.
AU - Yang, H. C.
N1 - Funding Information:
Manuscript received August 29, 2006. This work is supported by the National Science Council of R.O.C. under Grant No. NSC94-2112-M-027-003. J. T. Jeng is with the Institute of Mechatronic Engineering, National Taipei University of Technology, Taipei 10608, Taiwan (e-mail: [email protected]). K. H. Huang is with the Institute of Manufacturing Technology, National Taipei University of Technology, Taipei 10608, Taiwan. C. H. Wu is with the Department of Physics, Tunghai University, Taichung 40704, Taiwan. K. L. Chen, J. C. Chen, and H. C. Yang are with the Department of Physics, National Taiwan University, Taipei 10617, Taiwan. Digital Object Identifier 10.1109/TASC.2007.898270
PY - 2007/6
Y1 - 2007/6
N2 - The characteristics of the magnetometer based on the superconducting quantum interference grating (SQIG) consisting of multiple high-Tc grain-boundary Josephson junctions were investigated. In comparison with the two-junction superconducting quantum interference device (SQUID), an enhancement in the flux-to-voltage transfer function by a factor of 4.6 was achieved. Moreover, a sharp increase in the flux-to-current transfer function by a factor of 45 was observed for the case with the screening parameter much less than unity. The estimated white magnetic flux noise of the SQIG is lower than that of the conventional SQUID by one order of magnitude.
AB - The characteristics of the magnetometer based on the superconducting quantum interference grating (SQIG) consisting of multiple high-Tc grain-boundary Josephson junctions were investigated. In comparison with the two-junction superconducting quantum interference device (SQUID), an enhancement in the flux-to-voltage transfer function by a factor of 4.6 was achieved. Moreover, a sharp increase in the flux-to-current transfer function by a factor of 45 was observed for the case with the screening parameter much less than unity. The estimated white magnetic flux noise of the SQIG is lower than that of the conventional SQUID by one order of magnitude.
KW - Grain-boundary Josephson junctions
KW - High-T SQUID
KW - Superconducting-quantum-interference grating
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U2 - 10.1109/TASC.2007.898270
DO - 10.1109/TASC.2007.898270
M3 - Article
AN - SCOPUS:34547475072
SN - 1051-8223
VL - 17
SP - 691
EP - 694
JO - IEEE Transactions on Applied Superconductivity
JF - IEEE Transactions on Applied Superconductivity
IS - 2
ER -