Periodic Oscillations of Josephson-Vortex Flow Resistance in Oxygen-Deficient Y1Ba2Cu3Ox

Abstract

We measured the Josephson vortex flow resistance as a function of magnetic field applied parallel to the ab-planes using annealed Y1Ba2Cu3Ox intrinsic Josephson junctions having high anisotropy (around 40) by oxygen content reduction. Periodic oscillations were observed in magnetic fields above 45-58 kOe, corresponding to dense-dilute boundary for Josephson vortex lattice. The observed period of oscillations, agrees well with the increase of one fluxon per two junctions ($H_p$\textit{=$\Phi$}${}_0$\textit{/2Ls}), may correspond to formation of a triangular lattice of Josephson vortices as has been reported by Ooi et al. for highly anisotropic (larger than 200) Bi-2212 intrinsic Josephson junctions.

5 pages, 4 figures

References in corpus (5)

• Periodic Oscillations of Josephson-Vortex Flow Resistance in Bi${}_2$Sr${}_2$CaCu${}_2$O${}_{8+y}$
• Edge critical currents of dense Josephson vortex lattice in layered superconductors
• Possible critical point in phase diagrams of interlayer Josephson-vortex systems in high-Tc superconductors
• The origin of flux-flow resistance oscillations in BiSrCaCuO: Fiske steps in a single junction?
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Cited by in corpus (6)

• Temperature dependence of the bulk energy gap in underdoped Bi-2212: Evidence for the mean-field superconducting transition
• Intrinsic Josephson junctions in the iron-based multi-band superconductor (V2Sr4O6)Fe2As2
• C-axis electrical resistivity of PrO${}_{1-a}$F${}_a$BiS${}_2$ single crystals
• Magnetic oscillations of critical current in intrinsic Josephson-junction stacks
• Insight into Non Linearly Shaped Superconducting Whiskers via Synchrotron Nanoprobe
• Observation of a subharmonic gap singularity in interlayer tunneling characteristics of Bi2Sr2CaCu2O8+d