Observation of vortex-glass-to-liquid transition in the high-Tc superconductor Bi2Sr2Ca2Cu3O10

Qiang Li; H. J. Wiesmann; M. Suenaga; L. Motowidlow; P. Haldar

doi:10.1103/PhysRevB.50.4256

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Observation of vortex-glass-to-liquid transition in the high-Tc superconductor Bi2Sr2Ca2Cu3O10

Qiang Li, H. J. Wiesmann, M. Suenaga, L. Motowidlow, P. Haldar

DOI 10.1103/PhysRevB.50.4256 · Physical Review B

T1

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Abstract

We report a series of measurements of I-V curves for a c-axis-oriented Bi2Sr2Ca2Cu3O10/Ag tape immersed in liquid oxygen. By applying the critical scaling analysis to the I-V characteristics measured in various magnetic fields, a vortex-glass–liquid phase-transition line was identified in the mixed state of this system for H≤1.2 T, with critical exponents ν=1.25±0.15 and z=8.5±1.5. We also show that this transition boundary in the H-T plane defines the upper limit of useful current carrying capacities for the Bi2Sr2Ca2Cu3O10/Ag tapes at a given temperature and magnetic field.

Source-reported materials — not catalogue approval

Formula	Reported Tc (K)	Pressure (GPa)	Type
Bi2Sr2Ca2Cu3O10 Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula.	106.5	Pressure unresolved	unknown
YBa2Cu3O7 Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula.	—	Pressure not reported	unknown
Bi2Sr2CaCu2O8 Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula.	—	Pressure not reported	unknown