Measurement of Magnetic Relaxation in the peak regime of V3Si

Abstract

Magnetization relaxation measurements are carried out in the Peak effect regime of superconducting V3Si crystal, using Quantum Design SQUID magnetometer. Relaxation in the increasing field scan is logarithmic in time, consistent with the theory of flux creep. The relaxation on the decreasing field scan however exhibits athermal behavior which is predominantly governed by the flux avalanches triggered by the small external field perturbation experienced by the superconductor during measurement scan in an inhomogeneous field.

PDF, 17 pages including 9 figures

References in corpus (7)

• Plastic vortex-creep in YBa${}_2$Cu${}_3$O${}_{7-x}$ crystals
• Metastability and Glassy Behavior of a Driven Flux-Line Lattice
• Anomalous Peak Effect in CeRu2 and NbSe2 : Fracturing of a Flux Line Lattice?
• A study of supercooling of the disordered vortex phase via minor hysteresis loops in 2H-NbSe_2
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• Heavy fermion superconductivity in the filled skutterudite compound PrOs${}_4$Sb${}_{12}$
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Cited by in corpus (1)

• Evaluation of a long-time temperature drift in a commercial Quantum Design MPMS SQUID magnetometer using Gd${}_2$O${}_3$ as a standard