Giant anisotropy in superconducting single crystals of CsCa${}_2$Fe${}_4$As${}_4$F${}_2$

Zhi-Cheng Wang, Yi Liu, Si-Qi Wu +3

CsCa${}_2$Fe${}_4$As${}_4$F${}_2$ is a newly discovered iron-based superconductor with $T_{\mathrm{c}}\sim$ 30 K containing double Fe${}_2$As${}_2$ layers that are separated by insulating Ca${}_2$…