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Magnetic interference pattern in planar SNS Josephson junctions | | G. Mohammadkhani
; M. Zareyan
; Ya. M. Blanter
; | | Date: |
18 Dec 2007 | | Abstract: | We study the Josephson current through a ballistic normal metal layer of
thickness $D$ on which two superconducting electrodes are deposited within a
distance $L$ of each other. In the presence of an ({it in-layer}) magnetic
field we find that the oscillations of the critical current $I_c(Phi)$ with
the magnetic flux $Phi$ are significantly different from an ordinary magnetic
interference pattern. Depending on the ratio $L/D$ and temperature,
$I_c(Phi)$-oscillations can have a period smaller than flux quantum $Phi_0$,
nonzero minima and damping rate much smaller than $1/Phi$. Similar anomalous
magnetic interference pattern was recently observed experimentally. | | Source: | arXiv, 0712.2967 | | Services: | Forum | Review | PDF | Favorites | |
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