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IEEE transactions on applied superconductivity : a publication of the IEEE Superconductivity Committee, v.15 no.2 pt.1, 2005년, pp.461 - 464
Chong, Yonuk (Nat. Inst. of Stand. & Technol., Boulder, CO, USA) , Burroughs, C.J. , Dresselhaus, P.D. , Hadacek, N. , Yamamori, H. , Benz, S.P.
We have developed vertically stacked superconductor normal-metal-superconductor Josephson junction technology for the next-generation quantum voltage standards. Stacked junctions provide a practical way of increasing the output voltage and operating margins. In this paper, we present fully functioning programmable voltage standard chips with double- and triple- stacked MoSi2 barrier Josephson junctions with over 100 000 junctions operating simultaneously on a 1 cm × 1 cm chip. The maximum output voltages of the double- and triple-stacked chips were 2.6 V and 3.9 V, with respective operating current margins of 2 mA and 1 mA. A new trinary-logic design is used to achieve higher voltage resolution. Thermal transport in these high-density chips will be briefly discussed.
Ishizaki, M., Yamamori, H., Shoji, A., Benz, S.P., Dresselhaus, P.D.. Critical current control and microwave-induced characteristics of (NbN/TiNx)n/NbN stacked junction arrays. IEEE transactions on applied superconductivity : a publication of the IEEE Superconductivity Committee, vol.13, no.2, 1093-1095.
Chong, Yonuk, Dresselhaus, P. D., Benz, S. P., Bonevich, J. E.. Effects of interlayer electrode thickness in Nb/(MoSi2/Nb)N stacked Josephson junctions. Applied physics letters, vol.82, no.15, 2467-2469.
Hadacek, N., Dresselhaus, P.D., Chong, Y., Benz, S.P., Bonevich, J.E.. Fabrication and measurement of tall stacked arrays of SNS Josephson junctions. IEEE transactions on applied superconductivity : a publication of the IEEE Superconductivity Committee, vol.15, no.2, 110-113.
extended abstracts of ISEC stacked sns josephson junctions for quantum voltage applications dresselhaus 2003
Stacked niobium-$ \rm MoSi _ 2 $ -niobium Josephson junctions for ac voltage standards dresselhaus 0
Chong, Yonuk, Burroughs Jr., C.J., Dresselhaus, P.D., Hadacek, N., Yamamori, H., Benz, S.P.. 2.6-V high-resolution programmable Josephson voltage standard circuits using double-stacked MoSi2-barrier junctions. IEEE transactions on instrumentation and measurement, vol.54, no.2, 616-619.
Burroughs, C.J., Benz, S.P., Harvey, T.E., Hamilton, C.A.. 1 volt DC programmable Josephson voltage standard. IEEE transactions on applied superconductivity : a publication of the IEEE Superconductivity Committee, vol.9, no.2, 4145-4149.
Flexible cryopackages for Josephson devices burroughs 0
Chong, Yonuk, Dresselhaus, P. D., Benz, S. P.. Thermal transport in stacked superconductor-normal metal-superconductor Josephson junctions. Applied physics letters, vol.83, no.9, 1794-1796.
Benz, S.P., Burroughs, C.J., Dresselhaus, P.D.. AC coupling technique for Josephson waveform synthesis. IEEE transactions on applied superconductivity : a publication of the IEEE Superconductivity Committee, vol.11, no.1, 612-616.
Yamamori, H, Itoh, M, Sasaki, H, Shoji, A, Benz, S P, Dresselhaus, P D. All-NbN digital-to-analog converters for a programmable voltage standard. Superconductor science & technology, vol.14, no.12, 1048-1051.
Benz, S.P., Hamilton, C.A.. Application of the Josephson effect to voltage metrology. Proceedings of the IEEE, vol.92, no.10, 1617-1629.
NIST uses programmable Josephson voltage standard systems in both the primary voltage calibration lab and in the watt-balance experiment in Gaithersburg MD On the other hand $ \rm Nb \hbox - \rm AlO _ \rm x \hbox - \rm Nb $ junction-based conventional 10-V voltage standard systems have been widely used in metrology labs for calibration purpose However these conventional systems are not fast-programmable that is the voltage steps cannot be quickly set to a desired value 0
Benz, S.P., Dresselhaus, P.D., Burroughs, C.J.. Nanotechnology for next generation josephson voltage standards. IEEE transactions on instrumentation and measurement, vol.50, no.6, 1513-1518.
IEEE Trans Instrum Meas flat-spot measurements for an ac josephson voltage standard burroughs 2005 10.1109/TIM.2004.843070 54
Pöpel, R, Hagedorn, D, Weimann, T, Buchholz, F-I, Niemeyer, J. Superconductor-normal metal-superconductor process development for the fabrication of small Josephson junctions in ramp type configuration. Superconductor science & technology, vol.13, no.2, 148-153.
Benz, S. P., Hamilton, C. A., Burroughs, C. J., Harvey, T. E., Christian, L. A.. Stable 1 volt programmable voltage standard. Applied physics letters, vol.71, no.13, 1866-1868.
Dresselhaus, P.D., Chong, Yonuk, Plantenberg, J.H., Benz, S.P.. Stacked SNS Josephson junction arrays for quantum voltage standards. IEEE transactions on applied superconductivity : a publication of the IEEE Superconductivity Committee, vol.13, no.2, 930-933.
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