Dynamics of metastable vortex states in weakly pinned superconductors: A phenomenological model

G. Ravikumar

doi:10.1103/PhysRevB.63.224523

← Back to search

Dynamics of metastable vortex states in weakly pinned superconductors: A phenomenological model

G. Ravikumar

DOI 10.1103/PhysRevB.63.224523 · Physical Review B

T1

Active bibliographic source — not scientific approval

Bibliographic access preserves source history; it does not approve extracted materials or validate reported claims. Review warnings on each occurrence separately.

Abstract

A phenomenological model for the vortex dynamics in the peak-effect region of weakly pinned superconductors is presented. The history-dependent dynamic response of the metastable vortex states subjected to a transport current, and the hysteretic voltage-current characteristics observed in the vicinity of peak effect in weakly pinned superconductors has been explained. A strong variation in voltage-current characteristics with the current sweep rate, and the anomalous dependence of critical current density Jc on the magnetic-field sweep rate have also been accounted for by this model.

Source-reported materials — not catalogue approval

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