Figure 3
From: Pressure-induced amorphous-to-amorphous configuration change in Ca-Al metallic glasses
Calculated and experimental data of Ca K-edge XANES for pure Calcium and CaAl metallic glasses respectively.
(a) K-edge XANES spectra for pure polycrystalline fcc-Ca (at 19.8 GPa) and bcc-Ca (at 19.9 GPa) as obtained by calculations in the framework of the multiple-scattering (MS) theory using the FEFF 8.2 code. Lattice parameters for both fcc- and bcc-Ca phases are from Ref.23 (b) Ca K-edge x-ray absorption near edge structure experimental curves for Ca100−xAlx (x = 20, 27.3, 33.6 and 50 at.%) MGs at ambient pressure.
