Temperature Dependence of the Local Structure and Iron Magnetic Moment in the Self-Doped CaKFe4As4 Iron-Based Superconductor

F Stramaglia, GM Pugliese, L Tortora… - The Journal of …, 2021 - ACS Publications
Temperature-dependent Fe K-edge extended X-ray absorption fine structure (EXAFS) and
Fe Kβ X-ray emission spectroscopy (XES) measurements are used to study the local …

Effect of aliovalent substitution on the local structure of CaKFe4As4 superconductor

G Tomassucci, L Tortora, F Minati… - Journal of Physics …, 2024 - iopscience.iop.org
We have investigated the local structure of the iron-based CaKFe 4 As 4 superconductor
featuring distinct aliovalent substitutions at the Ca and K sites, that is CaKFe 4 As 4, CaK 0.9 …

Determination of the local structure of the superconductor

GM Pugliese, L Simonelli, L Tortora, G Tomassucci… - Physical Review B, 2022 - APS
We have studied the local structure of La 0.5− x Na 0.5+ x Fe 2 As 2 superconductor by As K-
edge x-ray absorption fine structure measurements as a function of temperature in a wide …

Structural strain and competition between charge density wave and superconductivity in compounds

A Martinelli, P Carretta, M Moroni, S Sanna - Physical Review B, 2021 - APS
Selected members of the La (Fe, Mn) As (O 0.89 F 0.11) system were analyzed using high-
resolution synchrotron x-ray powder diffraction. The tetragonal to orthorhombic structural …