2,224 research outputs found
Analytical investigation of magnetic field distributions around superconducting strips on ferromagnetic substrates
The complex-field approach is developed to derive analytical expressions of
the magnetic field distributions around superconducting strips on ferromagnetic
substrates (SC/FM strips). We consider the ferromagnetic substrates as ideal
soft magnets with an infinite magnetic permeability, neglecting the
ferromagnetic hysteresis. On the basis of the critical state model for a
superconducting strip, the ac susceptibility of a SC/FM
strip exposed to a perpendicular ac magnetic field is theoretically
investigated, and the results are compared with those for superconducting
strips on nonmagnetic substrates (SC/NM strips). The real part for
(where is the amplitude of the ac magnetic field,
is the critical current density, and is the thickness of the
superconducting strip) of a SC/FM strip is 3/4 of that of a SC/NM strip. The
imaginary part (or ac loss ) for of a SC/FM
strip is larger than that of a SC/NM strip, even when the ferromagnetic
hysteresis is neglected, and this enhancement of (or ) is due to
the edge effect of the ferromagnetic substrate.Comment: 8 pages, 6 figures, submitted to Phys. Rev.
Stability Analysis of He II Cooled Aluminum Stabilized Superconductor Subject to Conductor Motion
Stabilization of Cable in Conduit Superconductor with Non Uniform Current Distribution among Strands
Stabilization of Cable in Conduit Superconductor (CCSC) with Non-Uniform Current Distribution Among Strands
Stabilizing Large-scale and High-current Density Conductor Composed of Parallel Sub-conductors by Active Control of Current Distribution
Study on Quench Current Distribution in Strands of Conduit Superconductors and their Stability
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