Defect-Unbinding and the Bose-Glass Transition in Layered Superconductors

C. J. van der Beek; M. Konczykowski; A. V. Samoilov; N. Chikumoto; S. Bouffard; M. V. Feigel'man

doi:10.1103/PhysRevLett.86.5136

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Defect-Unbinding and the Bose-Glass Transition in Layered Superconductors

C. J. van der Beek, M. Konczykowski, A. V. Samoilov, N. Chikumoto, S. Bouffard, M. V. Feigel'man

DOI 10.1103/PhysRevLett.86.5136 · Physical Review Letters

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Abstract

The low-field Bose-glass transition temperature in heavy-ion irradiated Bi2Sr2CaCu2O8+δ increases progressively with increasing density nd of irradiation-induced columnar defects, but saturates for nd≳1.5×109cm−2. The maximum Bose-glass temperature corresponds to that above which diffusion of two-dimensional pancake vortices between vortex lines becomes possible, and the “linelike” character of vortices is lost. We develop a description of the Bose-glass line that quantitatively describes experiments on crystals with widely different track densities and material parameters.

Source-reported materials — not catalogue approval

Formula	Reported Tc (K)	Pressure (GPa)	Type
Bi2Sr2CaCu2O8+δ Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula.	89	Pressure not reported	unknown
Bi2Sr2CaCu2O8+δ Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula.	82	Pressure not reported	unknown
YBa2Cu3O7-δ Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula.	—	Pressure not reported	unknown