Loading...
Please wait, while we are loading the content...
A study of the Nb3Ge system by Ge K-edge extended x-ray absorption fine structure and x-ray absorption near-edge structure spectroscopy
| Content Provider | Scilit |
|---|---|
| Author | Saini, N. L. Filippi, M. Wu, Ziyu Oyanagi, H. Ihara, H. Iyo, A. Agrestini, S. Bianconi, A. |
| Copyright Year | 2002 |
| Description | Journal: Journal of Physics: Condensed Matter The local structure of $Nb_{3}$Ge intermetallic superconductor has been studied by Ge K-edge absorption spectroscopy. Extended x-ray absorption fine structure (EXAFS) experiments show two Ge–Nb distances. In addition to the crystallographic distance of ~2.87 Å, there exists a second Ge–Nb distance, shorter than the first by ~0.2 Å, assigned to a phase with short-range symmetry related to local displacements in the Nb–Nb chains. The x-ray absorption near-edge structure (XANES) spectrum has been simulated by full multiple-scattering calculations considering the local displacements determined by the EXAFS analysis. The XANES spectrum has been well reproduced by considering a cluster of 99 atoms within a radius of about 7 Å from the central Ge atom and introducing determined local displacements. |
| Related Links | http://pdfs.semanticscholar.org/7423/a854a8d83aea21387caedc8cd2b442de608e.pdf http://iopscience.iop.org/article/10.1088/0953-8984/14/49/310/pdf |
| Ending Page | 13550 |
| Page Count | 8 |
| Starting Page | 13543 |
| ISSN | 09538984 |
| e-ISSN | 1361648X |
| DOI | 10.1088/0953-8984/14/49/310 |
| Journal | Journal of Physics: Condensed Matter |
| Issue Number | 49 |
| Volume Number | 14 |
| Language | English |
| Publisher | IOP Publishing |
| Publisher Date | 2002-11-27 |
| Access Restriction | Open |
| Subject Keyword | Journal: Journal of Physics: Condensed Matter Condensed Matter Physics Local Displacements X Ray Absorption |
| Content Type | Text |
| Resource Type | Article |
| Subject | Condensed Matter Physics Materials Science |
