Počet záznamů: 1
Revisiting electronic topological transitions in the silver–palladium (Ag.sub.c./sub.Pd.sub.1−c./sub.) solid solution: an experimental and theoretical investigation
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SYSNO ASEP 0587149 Document Type J - Journal Article R&D Document Type Journal Article Subsidiary J Článek ve WOS Title Revisiting electronic topological transitions in the silver–palladium (AgcPd1−c) solid solution: an experimental and theoretical investigation Author(s) Reiter, F. (AT)
Marmodoro, Alberto (FZU-D) ORCID
Mardare, A. I. (AT)
Mardare, C. C. (AT)
Hassel, A.-W. (AT)
Ernst, A. (AT)
Hoffmann, M. (AT)Number of authors 7 Article number 2743 Source Title Materials. - : MDPI - ISSN 1996-1944
Roč. 17, č. 11 (2024)Number of pages 17 s. Language eng - English Country CH - Switzerland Keywords Ag-Pd alloy ; DFT calculation ; concentration ; electronic topological transitions (ETT) Subject RIV BM - Solid Matter Physics ; Magnetism OECD category Condensed matter physics (including formerly solid state physics, supercond.) R&D Projects GA23-04746S GA ČR - Czech Science Foundation (CSF) Method of publishing Open access Institutional support FZU-D - RVO:68378271 UT WOS 001246873400001 EID SCOPUS 85195834686 DOI https://doi.org/10.3390/ma17112743 Annotation Multiple samples of the Ag_c,Pd_{1−c} solid solution were prepared using PVD over a borosilicate glass substrate. This synthesis technique allows continuous variation in stoichiometry, while the distribution of Ag or Pd atoms retains the arrangement into an on-average periodic lattice with smoothly varying unit cell parameters. The alloy concentration and geometry were measured over a set of sample points, respectively, via energy-dispersive X-ray spectroscopy and via X-ray diffraction. These results are compared with ab initio total energy and electronic structure calculations based on DFT, and using the CPA for an effective medium description of disorder. Lattice parameters appear in qualitative agreement with the measured trends. The numerical study of the Fermi surface also shows a variation in its topological features, which follow the change in Ag concentration. These were related to the electrical resistivity of the alloy. Workplace Institute of Physics Contact Kristina Potocká, potocka@fzu.cz, Tel.: 220 318 579 Year of Publishing 2025 Electronic address https://hdl.handle.net/11104/0354429
Počet záznamů: 1