Comparative study of vortex dynamics in CaKFe4As4 and Ba0.6K0.4Fe2As2 single crystals
Sign Up to like & getrecommendations! Published in 2019 at "Science Bulletin"
DOI: 10.1016/j.scib.2018.12.024
Abstract: Abstract We investigate the vortex dynamics in two typical hole doped iron based superconductors CaKFe4As4 (CaK1144) and Ba0.6K0.4Fe2As2 (BaK122) with similar superconducting transition temperatures. It is found that the magnetization hysteresis loop exhibits a clear… read more here.
Keywords: vortex dynamics; temperature; bak122; 6k0 4fe2as2 ... See more keywords
Orbital selectivity of layer-resolved tunneling in the iron-based superconductor Ba0.6K0.4Fe2As2
Sign Up to like & getrecommendations! Published in 2020 at "Physical Review B"
DOI: 10.1103/physrevb.102.054515
Abstract: We use scanning tunneling microscopy/spectroscopy (STM/S) to elucidate the Cooper pairing of the iron pnictide superconductor Ba0.6K0.4Fe2As2. By a cold-cleaving technique, we obtain atomically resolved termination surfaces with different layer identities. Remarkably, we observe that… read more here.
Keywords: iron; orbital selectivity; superconductor ba0; layer ... See more keywords