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Modulation of Josephson current of Nb junctions by two-dimensional scan of external magnetic field

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5 Author(s)
Nakayama, Akiyoshi ; Dept. of Electr. Eng., Kanagawa Univ., Yokohama, Japan ; Abe, Susumu ; Morita, T. ; Iwata, M.
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Josephson current of superconducting junctions can be modulated by an external field. This modulation of the Josephson current Ic is usually observed by one-dimensional scan of the applied magnetic field. In this paper, using two pairs of the Helmholz coils, the external magnetic field H is scanned in two dimensions and the two-dimensional surfaces of the Ic-H dependence are first measured. Modulations of Fiske steps of the current-voltage characteristics are also studied

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Magnetics, IEEE Transactions on  (Volume:36 ,  Issue: 5 )