Transport Properties of Vortex Matter Governed by the Edge Inductance of Superconducting Bi${}_2$Sr${}_2$CaCu${}_2$O${}_8$ Single Crystals

Abstract

We study the distribution of transport current across superconducting Bi${}_2$Sr${}_2$CaCu${}_2$O${}_8$ crystals and the vortex flow through the sample edges. We show that the $T_x$ transition is of electrodynamic rather than thermodynamic nature, below which vortex dynamics is governed by the edge inductance instead of the resistance. This allows measurement of the resistance down to two orders of magnitude below the transport noise. By irradiating the current contacts the resistive step at vortex melting is shown to be due to loss of c-axis correlations rather than breakdown of quasi-long-range order within the a-b planes.

References in corpus (5)

• Equilibrium First-Order Melting and Second-Order Glass Transitions of the Vortex Matter in Bi${}_2$Sr${}_2$CaCu${}_2$O${}_8$
• Effect of pinning on the vortex-lattice melting line in type-II superconductors
• Interplay of Anisotropy and Disorder in the Doping-Dependent Melting and Glass Transitions of Vortices in Bi${}_2$Sr${}_2$CaCu${}_2$O${}_{8+\delta }$
• Self field of ac current reveals voltage-current law in type-II superconductors
• Phase Diagram of Vortices in High-T_c Superconductors with a Melting Line in the deep H_{c2} Region

Cited by in corpus (4)

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• Critical current in thin flat superconductors with Bean-Livingston and geometrical barriers
• Suppression of geometrical barrier in $B{i}_{2}S{r}_{2}CaC{u}_2{O}_{8+\delta }$ crystals by Josephson vortex stacks
• Dynamic Evolution of Flux Distributions in a Pulse-driven Superconductor by High-speed Magneto-optical Imaging