Abstract
X-ray-absorption fine structure (XAFS) and x-ray-diffraction (XRD) measurements of disordered alloys and prepared by melt spinning were performed. In the alloy, no significant local deviations of the atoms from the average fcc lattice were detected while in alloys, significant deviations of atoms from the average fcc lattice were found. Mean-square vibrations of the Cu-Cu distances revealed by the XAFS in alloys indicate the weakening of contact between Cu atoms in the dilute limit. Our computer simulation for clusters of atoms reproduces the main features of both the XAFS and XRD data.
- Received 17 May 2000
DOI:https://doi.org/10.1103/PhysRevB.62.9364
©2000 American Physical Society