dc.contributor |
Háskóli Íslands |
dc.contributor |
University of Iceland |
dc.contributor.author |
George, Sebastian |
dc.contributor.author |
Kádas, Krisztina |
dc.contributor.author |
Jönsson, Petra E. |
dc.contributor.author |
Muscas, Giuseppe |
dc.contributor.author |
Magnus, Fridrik |
dc.contributor.author |
Eriksson, Olle |
dc.contributor.author |
Delin, Anna |
dc.contributor.author |
Andersson, Gabriella |
dc.date.accessioned |
2020-08-25T11:25:16Z |
dc.date.available |
2020-08-25T11:25:16Z |
dc.date.issued |
2020-06-12 |
dc.identifier.citation |
George, S., Kádas, K., Jönsson, P.E. et al. Local structure in amorphous SmxCo1−x: a combined experimental and theoretical study. J Mater Sci 55, 12488–12498 (2020). https://doi.org/10.1007/s10853-020-04848-4 |
dc.identifier.issn |
0022-2461 |
dc.identifier.issn |
1573-4803 (eISSN) |
dc.identifier.uri |
https://hdl.handle.net/20.500.11815/2018 |
dc.description |
Publisher's version (útgefin grein) |
dc.description.abstract |
Using a combination of extended X-ray absorption fine structure measurements, stochastic quenching (SQ) calculations and Voronoi tessellation analysis, the local atomic environments in thin films of amorphous SmxCo1−x (x= 0.10, 0.22 and 0.35) are investigated and also compared with crystalline stoichiometric Sm–Co alloys of similar compositions. It is found that the variations in local environment around Co atoms in the amorphous films increase with increasing x and that none of the films exhibit any pronounced short-range order around the Sm atoms. There are, however, signs of clustering of Sm atoms in the SQ-generated simulated amorphous materials. Furthermore, good agreement is observed between experimentally obtained parameters, e.g., interatomic distances and coordination numbers, and those extracted from the simulated alloys. This is a strong indication that SQ provides a powerful route to reliable local structure information for amorphous rare earth–transition metal alloys and that it could be used for designing materials with properties that meet the demands of specific applications. |
dc.description.sponsorship |
Open access funding provided by Uppsala University. The authors would like to thank Dimitri Arvantis for sharing his knowledge and expertise in the EXAFS analysis process, as well as Stefan Carlson for his assistance during the EXAFS measurements at MAX-lab, Lund. The computations were performed on resources provided by the Swedish National Infrastructure for Computing (SNIC) at the National Supercomputer Center (NSC), Linköping University, the PDC Centre for High Performance Computing (PDC-HPC), KTH, and the High Performance Computing Center North (HPC2N), Umeå University. Financial support from the Swedish Research Council (G.A. Contract No. 2013-03927; P.J. Contract No. 2014-05951), Swedish Energy Agency (STEM), the Foundation for Strategic Research (SSF), eSSENCE, and STandUP is acknowledged. F.M. acknowledges funding from the Icelandic Research Fund (Grant No. 174271-053) |
dc.format.extent |
12488-12498 |
dc.language.iso |
en |
dc.publisher |
Springer Science and Business Media LLC |
dc.relation.ispartofseries |
Journal of Materials Science;55(26) |
dc.rights |
info:eu-repo/semantics/openAccess |
dc.subject |
Eðlisfræði |
dc.subject |
Segulmagn |
dc.title |
Local structure in amorphous Smx Co1−x : a combined experimental and theoretical study |
dc.type |
info:eu-repo/semantics/article |
dcterms.license |
This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons licence, and indicate if changes were made. The images or other third party material in this article are included in the article's Creative Commons licence, unless indicated otherwise in a credit line to the material. If material is not included in the article's Creative Commons licence and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this licence, visit http://creativecommons.org/licenses/by/4.0/. |
dc.description.version |
Peer reviewed |
dc.identifier.journal |
Journal of Materials Science |
dc.identifier.doi |
10.1007/s10853-020-04848-4 |
dc.relation.url |
https://doi.org/10.1007/s10853-020-04848-4 |
dc.contributor.department |
Raunvísindastofnun (HÍ) |
dc.contributor.department |
Science Institute (UI) |
dc.contributor.school |
Verkfræði- og náttúruvísindasvið (HÍ) |
dc.contributor.school |
School of Engineering and Natural Sciences (UI) |