It will also improve the ability of manufacturers to characterize and control the characteristics and quality of material they produce, will increase critical current densities by improvements in flux pinning, and provide better control over the flux pinning properties of materials for shielding and levitation bearings. It was found that the low temperature spin-Peierls transition of the pure material was modified by the Sn doping. Sr 4-x Ca x PtO 6 were measured. This information was used to help determine phase relationships in this system. Phase diagrams determined at NIST are being used by industry to fabricate improved high temperature superconducting materials.
Commercial devices using high temperature superconductors are currently available.
Many of these devices are being fabricated using laser ablation, a method which was developed by NIST in cooperation with the Johns Hopkins Applied Physics Laboratory.