Structural analysis and transport properties of [010]-tilt grain boundaries in Fe(Se,Te).

ABSTRACT: Understanding the nature of grain boundaries is a prerequisite for fabricating high-performance superconducting bulks and wires. For iron-based superconductors [e.g. Ba(Fe,Co)  2 As  2 , Fe(Se,Te), and NdFeAs(O,F)], the dependence of the critical current density Jc on misorientation angle ( θGB ) has been explored on [001]-tilt grain boundaries, but no data for other types of orientations have been reported. Here, we report on the structural and transport properties of Fe(Se,Te) grown on CeO  2 -buffered symmetric [010]-tilt roof-type SrTiO  3 bicrystal substrates by pulsed laser deposition. X-ray diffraction and transmission electron microscopy revealed that θGB of Fe(Se,Te) was smaller whereas θGB of CeO  2 was larger than that of the substrate. The difference in θGB between the CeO  2 b

SUBMITTER: Iida K 

PROVIDER: S-EPMC11575649 | biostudies-literature | 2024

REPOSITORIES: biostudies-literature