Magnetic Field Determination Method of a Superconducting System

Abstract

Magnetic field penetration through a superconductive wall is expressed in general cases including the wall thickness close to the London penetration depth of the superconductor. In addition, solutions of the field penetration for a superconducting cylinder of infinite length and for a superconducting spherical shell are given. Using the solution, magnetic field penetration through a very thin superconducting film is discussed compared with the conventional solutions.