Multigap nodeless superconductivity in CsCa2Fe4As4F2 probed by heat transport

Y. Y. Huang, Z. C. Wang, Y. J. Yu +5

Recently, a new family of iron-based superconductors called 12442 was discovered and the muon spin relaxation ($\mu$SR) measurements on KCa${}_2$Fe${}_4$As${}_4$F${}_2$ and CsCa${}_2$Fe${}_4$As$…