TYPE-II SUPERCONDUCTING STRIP IN PERPENDICULAR MAGNETIC-FIELD

The current density and local magnetic field are calculated analytical ly for a strip of a type-II superconductor in perpendicular magnetic f ield H(a) for constant critical current density. The penetrating flux front has vertical slope and the initial penetration depth, magnetizat ion change and hysteretic losses are approximately H-a(2), approximate ly H-a(3) and approximately H-a(4), respectively. The analytical resul ts differ from the widely used Bean Model and explain numerous experim ents in a natural way without the assumption of a surface barrier.