Irreversible magnetization of pin-free type-II superconductors
Ernst Helmut Brandt
DOI 10.1103/PhysRevB.60.11939 · Physical Review B
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Abstract
The magnetization of ideal type-II superconductors without vortex pinning is derived from first principles for superconductors with constant thickness. This magnetization is irreversible due to a macroscopic geometric barrier for flux penetration at the edges, which yields a sharply defined entry field Hen. Above some reversibility field Hrev>Hen the magnetization becomes reversible and coincides with that of an ideal ellipsoid.
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