High magnetic fields play a crucial role in advancing basic sciences, fusion energy, and
magnetic resonance imaging systems. However, the widespread use of high-field magnets …

Iron-based 1111-type superconductors display high critical temperatures and relatively high
critical current densities J c. The typical approach to increasing J c is to introduce defects to …

Superconducting magnets based on high-temperature superconductors (HTSs) have
become critical components in cutting-edge technologies such as advanced medical …

Since the discovery of Fe-based superconductors, a lot of effort has been devoted to
growing single crystals and epitaxial thin films of them for fundamental studies and applied …

Iron-based superconductors have great potential for high-power applications due to their
prominent high-field properties. One of the central issues in enhancing the critical current …

Iron-based superconducting wires fabricated by the powder-in-tube method are promising
candidates for practical applications due to their prominent high-field performance. The …

In this study, the microstructure of polycrystalline Co-doped BaFe 2 As 2 superconducting
bulks was comprehensively analyzed. The synthesis process involved ball milling and …

We compared the grain and grain boundary (GB) nanostructures in two Ba122 tapes with
similarly high J c. The Ag-sheathed tape made by hot pressing has larger, more plate-like …

The critical current density at high magnetic fields of high-temperature superconducting
single crystals and films is mainly determined by the flux pinning force arising from …

Molecular beam epitaxy of K-doped Ba122 (Ba 1− x K x Fe 2 As 2) superconductor was
realized on an MgO substrate. Microstructural observation revealed that the undoped Ba122 …