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Dependence of the pinning force on magnetic fields in type II superconductors

1968; Elsevier BV; Volume: 6; Issue: 10 Linguagem: Inglês

10.1016/0038-1098(68)90562-0

1879-2766

M. A. R. LeBlanc, C.T. Chang,

Superconductivity in MgB2 and Alloys

Abstract The surface “barrier”, the diamagnetic magnetization, the residual flux and the critical current of Nb 3 Zr and NbTi wires in transverse fields can all be enhanced by a factor of ≈ 3 by superimposing an axial magnetic field. This enhancement arises mainly because the pinning force density at the surface and in the bulk increases as B n when B ⪡ H Ce with n ≈ 0.7 in Nb 3 Zr.