Influence of multiband sign-changing superconductivity on vortex cores and vortex pinning in stoichiometric high- T c CaKFe 4 As 4
Authors: Antón Fente, William R. Meier, Tai Kong, Vladimir G. Kogan, Sergey L. Bud'ko, Paul C. Canfield, Isabel Guillamón and Hermann Suderow Phys.…