The impact of Mn nonstoichiometry on the oxygen mass transport properties of La0.8Sr0.2MnyO3±δ thin films

Dataset for the article: Francesco M Chiabrera et al 2022 J. Phys. Energy 4 044011 (DOI 10.1088/2515-7655/ac98df) The dataset contains: "AFM.rar" : AFM of LSMy thin films with composition y=0.85 and y=1.00. "cell expansion_experimental and antisite model_Mn compositions.txt": measured lattice expansion and calculated by antisites model "Defect chemistry models.xlsx". Excel worksheet containing the automatic calculation of the three defect chemistry models studied (dilute, Mn vacancies and La antisites) "EDX_Mn compositions.txt" Mn/(La+Sr) ratios (y) measured by EDX "fraction of 18O_exp and fittings.rar" 18O depth profiles measured by SIMS after the exchange at 650 ºC for 3540 s (for y=0.85 and y=1.00) and 4000 s (for y=0.88, y=0.94 and y=0.99) and depth profile fitting. "lattice parameter_Mn composition.txt": evolution of lattice parameter measured by XRD vs Mn content. "oxygen mass transport parameters.rar": diffusivity and oxygen exchange parameter extracted by SIMS for the samples with different Mn content. "PALS intensities_Mn composition.txt": Relative intensities of Mn and La vacancies measured by PALS for different Mn content. "positron lifetimes.rar" : Positron lifetimes of main defects (La and Mn vacancies) as a function of photon energy for different Mn content. "RSM103.rar" Reciprocal SPace maps around 103 reflections of the thin films for different Mn content. "TEM Figures_y0.85.pdf" Collection of TEM cross sectional figures of the sample with y=0.85. "XRD.rar" theta-2theta scans of the LSMy thin films for different Mn content around the 002 reflection.