In-situ synchrotron X-ray spectroscopy on transition-metal-based nitride thin films
| Reference number | |
| Coordinator | Linköpings universitet - IFM, Linköping University |
| Funding from Vinnova | SEK 400 000 |
| Project duration | May 2020 - April 2021 |
| Status | Completed |
| Venture | Research infrastructure - utilisation and collaboration |
| Call | Increasing PhD students' competence in neutron- and synchroton-based analysis methods in industry - spring 2020 |
Important results from the project
The goals of the project were * To develop skills in synchrotron-based X-ray spectroscopy * To contribute to the understanding of the local structure of transition metal-based multicomponent films These objective have been fully achieved. X-ray absorption spectroscopy provides a unique way to determine local structure and short-range order in multicomponent alloys. Measurements were made at MAX IV, the BALDER beam tube. Both competence development and analysis and understanding of data as such have been fully achieved. A first article with the results is published.
Expected long term effects
The results have exceeded our expectations - all the desired data, and more from multi-component materials have been measured. Developmental and competence goals have been achieved by a a margin. Rui Shu has defended his licentiate thesis and the PhD dissertation is planned for the autumn of 2022. A publication from this project will be included in the doctoral thesis (but not the licentiate).
Approach and implementation
Samples in the TiZrTaNb system for the EXAFS and XANES studies were used for measurement number at MAX IV, beamline BALDER. XANES and EXAFS spectra are collected at Ti-, Cr-, Zr-, Nb- and Mo K-kanterna and Hf- and Ta L-kanterna in fluorescence mode. Radiation time could be implemented in the autumn of 2020 (despite the coronary restrictions) and was a great success. Initial data have been published (see above).