Abstract

The high-speed method is proposed for analyzing a shielding current density in a high-temperature superconducting film containing cracks. In the proposed method, the linear-system at each iteration of Newton method is solved by using a GMRES(k) method. Consequently, it is found that the GMRES(k) method is a powerful tool for analyzing the shielding current density in an HTS thin film. In addition, the speed of the GMRES(k) method can be accelerated by a factor of about 2 by using the H-matrix method.

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