dc.contributor |
Háskóli Íslands |
dc.contributor |
University of Iceland |
dc.contributor.author |
Bergman, Anders |
dc.contributor.author |
Hellsvik, Johan |
dc.contributor.author |
Bessarab, Pavel |
dc.contributor.author |
Delin, Anna |
dc.date.accessioned |
2017-09-26T14:45:14Z |
dc.date.available |
2017-09-26T14:45:14Z |
dc.date.issued |
2016-11-14 |
dc.identifier.citation |
Bergman, A. et al. Spin relaxation signature of colossal magnetic anisotropy in platinum atomic chains. Sci. Rep. 6, 36872; doi: 10.1038/srep36872 (2016). |
dc.identifier.issn |
2045-2322 |
dc.identifier.uri |
https://hdl.handle.net/20.500.11815/411 |
dc.description.abstract |
Recent experimental data demonstrate emerging magnetic order in platinum atomically thin nanowires. Furthermore, an unusual form of magnetic anisotropy – colossal magnetic anisotropy (CMA) – was earlier predicted to exist in atomically thin platinum nanowires. Using spin dynamics simulations based on first-principles calculations, we here explore the spin dynamics of atomically thin platinum wires to reveal the spin relaxation signature of colossal magnetic anisotropy, comparing it with other types of anisotropy such as uniaxial magnetic anisotropy (UMA). We find that the CMA alters the spin relaxation process distinctly and, most importantly, causes a large speed-up of the magnetic relaxation compared to uniaxial magnetic anisotropy. The magnetic behavior of the nanowire exhibiting CMA should be possible to identify experimentally at the nanosecond time scale for temperatures below 5 K. This time-scale is accessible in e.g., soft x-ray free electron laser experiments. |
dc.description.sponsorship |
We acknowledge financial support from Vetenskapsrådet (VR), The Royal Swedish Academy of Sciences (KVA), the Knut and Alice Wallenberg Foundation (KAW), Swedish Energy Agency (STEM), Swedish Foundation for Strategic Research (SSF), Carl Tryggers Stiftelse (CTS), eSSENCE, Icelandic Research Fund, and Göran Gustafssons Stiftelse (GGS). 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 Center for High Performance Computing (PDC-HPC), KTH, and the High Performance Computing Center North (HPC2N), Umeå University. |
dc.format.extent |
36872 |
dc.language.iso |
en |
dc.publisher |
Springer Nature |
dc.relation.ispartofseries |
Scientific Reports;6(1) |
dc.rights |
info:eu-repo/semantics/openAccess |
dc.subject |
Magnetic properties |
dc.subject |
Magnetic materials |
dc.subject |
Nanowires |
dc.subject |
Segulmagn |
dc.title |
Spin relaxation signature of colossal magnetic anisotropy in platinum atomic chains |
dc.type |
info:eu-repo/semantics/article |
dcterms.license |
This work is licensed under a Creative Commons Attribution 4.0 International License. The images
or other third party material in this article are included in the article’s Creative Commons license,
unless indicated otherwise in the credit line; if the material is not included under the Creative Commons license,
users will need to obtain permission from the license holder to reproduce the material. To view a copy of this
license, visit http://creativecommons.org/licenses/by/4.0/ |
dc.description.version |
Peer Reviewed |
dc.identifier.journal |
Scientific Reports |
dc.identifier.doi |
10.1038/srep36872 |
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) |