Local and Nonlocal Effects: In the Penetration of Magnetic Fields Into Superconducting Tin Film Cylinders |
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Common terms and phrases
Ampère's law approximation BCS theory best fit curve Best theoretical fits calculations chi square coefficient coherence length convergence cryostat data points data set data set F5-1 dewar DGST diameter Drangeid and Sommerhalder error bar evaporation experimental data external field factor field coil Figure film thickness fits to data gives graphs H₁ H₂ helium hole hollow superconducting cylinder inductance inside integral lead foil leakage lock-in London equation London theory loop magnetic field penetration magnetometer mean free path measurements negative extremum niobium obtain output penetration depth pickup coil pinhole pinhole contribution Pippard fit Pippard theory ratio reduced semi-infinite superconductor shielding solution Sommerhalder and Thomas specular reflection square values SQUID substrate superconducting electrons surface tank circuit temperature dependence thickness monitor tin cylinder transformer transition temperature trapped flux vector potential wall thickness weak link Xmin zero ΔΗ