Flux-line cutting in granular high-temperature superconductors

F. Pérez-Rodríguez; A. Pérez-González; John R. Clem; G. Gandolfini; M. A. R. LeBlanc

doi:10.1103/PhysRevB.56.3473

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Flux-line cutting in granular high-temperature superconductors

F. Pérez-Rodríguez, A. Pérez-González, John R. Clem, G. Gandolfini, M. A. R. LeBlanc

DOI 10.1103/PhysRevB.56.3473 · Physical Review B

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Abstract

The magnetic response of granular high-temperature superconducting plates subjected to a dc-bias magnetic field and an increasing field perpendicular to it is studied both experimentally and theoretically. The theoretical model is based upon the double critical-state model, which considers not only flux transport but also flux-line cutting effects. Curves of magnetization for the system of grains decoupled by the applied magnetic field in sintered slabs of YBa2Cu3O7−x and NdBa2Cu3O7−x are analyzed. Good agreement between experimental results and theory is obtained.

Source-reported materials — not catalogue approval

Formula	Reported Tc (K)	Pressure (GPa)	Type
YBa2Cu3O7-x Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula.	77	Pressure not reported	unknown
NdBa2Cu3O7-x Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula.	77	Pressure not reported	unknown