X-ray reflectivity multilayer spectra and simulations. From top to bottom spectra of samples , , , and . All spectra have been vertically shifted for clearness.
(a) RBS spectra taken at energy of incident ions of 2 MeV (dots) and their simulations (lines) of samples , , , and , from top to bottom. All spectra have been vertically shifted for clearness. (b) RBS spectra of the same samples at 8 MeV.
Comparison between experimental Mn layer thickness values obtained from RBS and XRR (straight line represents correspondence between both values).
(a) Magnetization curves vs temperature. (b) Hysteresis loops at 5 and 100 K of sample . The inset shows the 100 K hysteresis loop.
(a) Mn -edge spectra of Mn foil, MnO, MnOOH, and , from left to right (taken from Ref. 12). Inset: Mn-valence vs the threshold energy (● references and 엯 samples). (b) Experimental Mn -edge spectra of Mn foil, and , , and samples (from left to right). Pre-edge background subtraction and edge step normalization procedures were performed on each spectrum.
Multilayer series summary. Bilayer thickness has been determined from simulation of XRR spectra, Mn atomic density, and sample composition have been obtained from simulation of Rutherford backscattering spectroscopy (RBS) data and Mn oxidation states have been estimated from the -edge energy shifts from XANES spectra.
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