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5 July 1996 Studies of static and dynamic properties of multilayered (stacked) Josephson junctions
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We have studied the static I-V characteristics and vortex dynamics in stacked Nb/AlOx/Nb Josephson junctions. In josephson junction stacks consisting of two junctions having identical maximum Josephson supercurrent Ic,Ic versus H characteristics deviating from the Fraunhofer pattern have been observed, implying that a structural phase transformation to a triangular vortex lattice occurs with increasing H. Interjunction coupling leads to splitting of the Swihart mode; which manifest itself as Fisk steps with different voltage spacings. When subjected to microwave radiation, the I-V curves of the stacked Josephson junctions exhibit new features which are absent in single junctions.
© (1996) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Shenian N. Song, Stevan R. Maglic, Christopher D. Thomas, Edward D. Rippert, P. R. Auvil, Melville P. Ulmer, and John B. Ketterson "Studies of static and dynamic properties of multilayered (stacked) Josephson junctions", Proc. SPIE 2697, Oxide Superconductor Physics and Nano-Engineering II, (5 July 1996);

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