Critical state in type-II superconductors with order-disorder transition

I. M. Babich; G. P. Mikitik; E. H. Brandt

doi:10.1103/PhysRevB.74.224501

← Back to search

Critical state in type-II superconductors with order-disorder transition

I. M. Babich, G. P. Mikitik, E. H. Brandt

DOI 10.1103/PhysRevB.74.224501 · 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

An explicit analytical solution of the critical-state problem is obtained for long thin superconducting strips in a perpendicular magnetic field Ha when a sharp order-disorder transition occurs in the vortex lattice. We model this transition from the quasiordered Bragg glass into the disordered amorphous vortex phase by a jump of the critical current density occurring at a value Bdis of the local magnetic induction. Explicit expressions are presented for the magnetic-field profiles at the surface of the strip, for the distribution of the sheet current, and for the magnetization loop.

Source-reported materials — not catalogue approval

Formula	Reported Tc (K)	Pressure (GPa)	Type
NbSe2 Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula.	—	Pressure not reported	unknown
Bi2Sr2CaCu2O8 Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula.	—	Pressure not reported	unknown