Vortex Plastic Motion in Twinned Superconductors

J. Groth; C. Reichhardt; C. J. Olson; Stuart B. Field; Franco Nori

doi:10.1103/PhysRevLett.77.3625

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Vortex Plastic Motion in Twinned Superconductors

J. Groth, C. Reichhardt, C. J. Olson, Stuart B. Field, Franco Nori

DOI 10.1103/PhysRevLett.77.3625 · Physical Review Letters

T1

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Abstract

We present simulations, without electrodynamical assumptions, of B(x,y,Ht),M(Ht), and Jc(Ht) in hard superconductors for a variety of twin-boundary pinning potential parameters, and for a range of values of the density and strength of the pinning sites. We numerically solve the overdamped equations of motion of up to 104 flux-gradient-driven vortices which can be temporarily trapped at ∼106 pinning centers. These simulations relate macroscopic measurements [e.g., MH, “flame” shaped Bx,y profiles] with the underlying microscopic pinning landscape and the plastic dynamics of individual vortices.

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.	—	Pressure not reported	unknown