Scaling behavior of the crossover to short-stack regimes of Josephson vortex lattices in Bi${}_2$Sr${}_2$CaCu${}_2$O${}_{8+\delta }$ stacks

Abstract

We report the systematic investigations of the oscillation of the Josephson vortex (JV) flow resistance in Bi${}_2$Sr${}_2$CaCu${}_2$O${}_{8+\delta }$ micro-fabricated junctions with various geometries and superconducting anisotropy parameters. As the applied magnetic field parallel to the $ab$-plane is increased, oscillation with a period corresponding to a ${\varphi }_0/2$ par atomic Josephson junction changes to oscillation with a doubled period. This crossover is scaled by both the junction length and the anisotropy parameter, indicating that the bulk inductive coupling that favors the triangular JV lattice is replaced with the surface deformation energy as the dominant interaction for a JV lattice. These results suggest that the in-phase square JV lattice is pronounced at a higher magnetic field in a smaller and more anisotropic sample.

4 pages, 3 figures

References in corpus (9)

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• The origin of flux-flow resistance oscillations in BiSrCaCuO: Fiske steps in a single junction?
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• Anisotropy of Vortex-Liquid and Vortex-Solid Phases in Single Crystals of Bi${}_2$Sr${}_2$CaCu${}_2$O${}_{8+\delta }$: Violation of the Scaling Law
• Two Phase Collective Modes in Josephson Vortex Lattice in Intrinsic Josephson Junction Bi${}_2$Sr${}_2$CaCu${}_2$O${}_{8+\delta }$
• Energy landscape and shear modulus of interlayer Josephson vortex systems

Cited by in corpus (5)

• Phase dynamics of inductively coupled intrinsic Josephson junctions and terahertz electromagnetic radiation
• Stability of dynamic coherent states in intrinsic Josephson-junction stacks near internal cavity resonance
• Josephson vortex lattice in layered superconductors
• Fluctuating pancake vortices revealed by dissipation of Josephson vortex lattice
• Size-dependent transformation from triangular to rectangular fluxon lattice in Bi-2212 mesa structures