Fundamental issues in high temperature superconductor (HTS) materials science and engineering

K. Marken,     Los Alamos National Laboratory, USA


A key factor for enabling high temperature superconductor (HTS) applications is the critical current density (Jc). The basic physics determining Jc is presented, along with basic concepts of the materials science of engineered flux-pinning defects, which provide tools to increase Jc in a superconductor. A history of the development of HTS materials concludes with comparison of processing and performance in three practical materials. Other key properties that enable applications are discussed, including economic considerations. Present status and price/performance trends indicate a wane ...

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