Dynamics of flat superconductors in a perpendicular magnetic field
Ernst Helmut Brandt
DOI 10.1103/PhysRevLett.71.2821 · Physical Review Letters
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
The theory of flux-line motion and ac response of a thin superconducting strip or circular disk in perpendicular time-dependent magnetic field is given. Flux dynamics in general is governed by a complex nonlinear sheet resistivity ρ/d (d is the thickness). In contrast to longitudinal fields, perpendicular field changes do not obey a diffusion equation but an integral equation with singular kernel. Screening currents immediately penetrate to the strip center and at times t≫τ0 decay as exp(-t/τ0) with τ0=0.249adμ0/ρ (2a is the strip width). Maximum ac losses occur at ωτ0=1.11.
Similar papers
Thin superconductors in a perpendicular magnetic ac field. II. Circular disk
similarity 0.94Ernst Helmut Brandt
Source status unknown — claims are unverified
Linear Response of Thin Superconductors in Perpendicular Magnetic Fields: An Asymptotic Analysis
similarity 0.87Alan T. Dorsey · 1995 · arXiv:cond-mat/9501110
Source status unknown — claims are unverified
Why an ac magnetic field shifts the irreversibility line in type-II superconductors
similarity 0.86Ernst Helmut Brandt & Grigorii P. Mikitik · 2002 · arXiv:cond-mat/0204310
Source status unknown — claims are unverified
Magnetic Field Walls in Flat-band Superconductors
similarity 0.86Guodong Jiang et al. · 2026 · arXiv:2606.06791
Source status unknown — claims are unverified
Exact Solution for the Critical State in Thin Superconductor Strips with Field Dependent or Anisotropic Pinning
similarity 0.86Grigorii P. Mikitik & Ernst Helmut Brandt · 2000 · arXiv:cond-mat/0003389
Source status unknown — claims are unverified
Magnetization of a superconducting film in a perpendicular magnetic field
similarity 0.86Mauro M. Doria et al.
Source status unknown — claims are unverified