Suppression of the superconducting energy gap in intrinsic Josephson junctions of $\mathbf{B}{\mathbf{i}}_2\mathbf{S}{\mathbf{r}}_2\mathbf{CaC}{\mathbf{u}}_2{\mathbf{O}}_{8+\delta }$ single crystals

Abstract

We have observed back-bending structures at high bias current in the current-voltage curves of intrinsic Josephson junctions. These structures may be caused by nonequilibrium quasiparticle injection and/or Joule heating. The energy gap suppression varies considerably with temperature. Different levels of the suppression are observed when the same level of current passes through top electrodes of different sizes. Another effect which is seen and discussed, is a super-current ``reentrance'' of a single intrinsic Josephson junction with high bias current.

accepted by Supercond. Sci. and Tech., 2004

References in corpus (8)

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• Controlling the Intrinsic Josephson Junction Number in a $\mathbf{B}{\mathbf{i}}_2\mathbf{S}{\mathbf{r}}_2\mathbf{CaC}{\mathbf{u}}_2{\mathbf{O}}_{8+\delta }$ Mesa
• Reply to the "Comment on 'Intrinsic tunneling spectra of Bi_2(Sr_{2-x}La_x)CuO_6' ": Auxiliary information

Cited by in corpus (5)

• Switching Dynamics of Bi${}_2$Sr${}_2$CaCu${}_2$O${}_{8+\delta }$ Intrinsic Josephson junctions: Macroscopic Quantum Tunneling and Self-Heating Effect
• Quantum cascade phenomenon in natural atomic superlattices formed in Bi2Sr2CaCu2O8 single crystals
• A single intrinsic Josephson junction with double-sided fabrication technique
• Superconducting properties of ultrathin Bi2Sr2CaCu2O8+x single crystals
• Superconducting quantum interference phenomenon in Bi${}_2$Sr${}_2$CaCu${}_2$O${}_{8+\delta }$ single crystals