Figure 3: X-ray absorption spectroscopy.
From: Heterointerface engineered electronic and magnetic phases of NdNiO3 thin films
(a) Soft X-ray absorption spectra of NdNiO3 ultrathin films at O K-edge at 300 K. Three reference spectra at 300 K and one at 80 K from bulk LaNiO3, NdNiO3 and GdNiO3 are included for comparison. Dashed lines and shaded boxes are guides for eye. The open circles on the top and bottom spectra indicate the FWHM. (b) The pre-peak FWHM around 529 eV and the energy shift of the pre-peak versus lattice mismatch ε. Their errors are limited to the photon energy resolution, 0.1 eV. Shaded bars are guides for eye.
