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Materials and processes for innovative next-generation devices
Researchers & Research Theme
Phase I Phase II Phase III

2008 Researchers

Ryuji KATAYAMA Iwao KAWAYAMA Yoshihiro KANGAWA
Wataru KOBAYASHI Tomofumi SUSAKI Mitsuru TAKENAKA
Toshihiro NAKAOKA Kohei HAMAYA Tomoteru FUKUMURA
Norikazu MIZUOCHI    

Creation of an optically-generated-flux-quantum nano-device with superconducting nanobridges

photo Iwao KAWAYAMA
Research Site
Assistant Professor, Institute of Laser Engineering, Osaka University
Research Results
The technologies of a single-flux-quantum (SFQ) logic circuit with a high Tc superconductor (HTS), which can operates in terahertz frequency region in principle, is an attractive candidate for the alternative technology to CMOS devices. However, the HTS-SFQ circuit is facing serious difficulties concerning integration processes and an interface between peripheral systems and the SFQ circuits. To overcome these difficulties, I propose a novel SFQ device "optically-generated-flux-quantum nano-device" in which superconducting nanobridges and optically generated flux quanta are introduced by combining nanotechnologies and terahertz technologies.



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