Abstract
The local structure of Nb3Ge intermetallic superconductor has been studiedby Ge K-edge absorption spectroscopy. Extended x-ray absorption finestructure (EXAFS) experiments show two Ge–Nb distances. In additionto the crystallographic distance of ∼2.87 Å, there exists a second Ge–Nbdistance, shorter than the first by ∼0.2 Å, assigned to a phase with short-rangesymmetry related to local displacements in the Nb–Nb chains. The x-rayabsorption near-edge structure (XANES) spectrum has been simulated by fullmultiple-scattering calculations considering the local displacements determined bythe EXAFS analysis. The XANES spectrum has been well reproducedby considering a cluster of 99 atoms within a radius of about 7 Å fromthe central Ge atom and introducing determined local displacements.
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callSimilar Papers
More From: Journal of Physics: Condensed Matter
Disclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
