Thermally activated flux creep in strongly layered high-temperature superconductors

Sudip Chakravarty; Boris I. Ivlev; Yuri N. Ovchinnikov

doi:10.1103/PhysRevB.42.2143

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Thermally activated flux creep in strongly layered high-temperature superconductors

Sudip Chakravarty, Boris I. Ivlev, Yuri N. Ovchinnikov

DOI 10.1103/PhysRevB.42.2143 · Physical Review B

T1

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Abstract

Thermal activation energies for single vortices and vortex bundles in the presence of a magnetic field parallel to the layers are calculated. The pinning considered is intrinsic and is due to the strongly layered structure of high-temperature superconductors. The magnetic field and the current dependence of the activation energy are studied in detail. The calculation of the activation energy is used to determine the current-voltage characteristic. It may be possible to observe the effects discussed in this paper in a pure enough sample.

Source-reported materials — not catalogue approval

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