A scenario for magnonic spin-wave traps

Spatially resolved measurements of the magnetization dynamics on a thin CoFeB film induced by an intense laser pump-pulse reveal that the frequencies of resulting spin-wave modes depend strongly on the distance to the pump center. This can be attributed to a laser generated temperature profile. We d...

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Autores principales: Busse, Frederik, Mansurova, Maria, Lenk, Benjamin, von der Ehe, Marvin, Münzenberg, Markus
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Nature Publishing Group 2015
Materias:
Article
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4642530/
https://www.ncbi.nlm.nih.gov/pubmed/26279466
http://dx.doi.org/10.1038/srep12824
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author Busse, Frederik
Mansurova, Maria
Lenk, Benjamin
von der Ehe, Marvin
Münzenberg, Markus
author_facet Busse, Frederik
Mansurova, Maria
Lenk, Benjamin
von der Ehe, Marvin
Münzenberg, Markus
author_sort Busse, Frederik
collection PubMed
description Spatially resolved measurements of the magnetization dynamics on a thin CoFeB film induced by an intense laser pump-pulse reveal that the frequencies of resulting spin-wave modes depend strongly on the distance to the pump center. This can be attributed to a laser generated temperature profile. We determine a shift of 0.5 GHz in the spin-wave frequency due to the spatial thermal profile induced by the femtosecond pump pulse that persists for up to one nanosecond. Similar experiments are presented for a magnonic crystal composed of a CoFeB-film based antidot lattice with a Damon Eshbach mode at the Brillouin zone boundary and its consequences are discussed.
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spelling pubmed-46425302015-11-20 A scenario for magnonic spin-wave traps Busse, Frederik Mansurova, Maria Lenk, Benjamin von der Ehe, Marvin Münzenberg, Markus Sci Rep Article Spatially resolved measurements of the magnetization dynamics on a thin CoFeB film induced by an intense laser pump-pulse reveal that the frequencies of resulting spin-wave modes depend strongly on the distance to the pump center. This can be attributed to a laser generated temperature profile. We determine a shift of 0.5 GHz in the spin-wave frequency due to the spatial thermal profile induced by the femtosecond pump pulse that persists for up to one nanosecond. Similar experiments are presented for a magnonic crystal composed of a CoFeB-film based antidot lattice with a Damon Eshbach mode at the Brillouin zone boundary and its consequences are discussed. Nature Publishing Group 2015-08-17 /pmc/articles/PMC4642530/ /pubmed/26279466 http://dx.doi.org/10.1038/srep12824 Text en Copyright © 2015, Macmillan Publishers Limited http://creativecommons.org/licenses/by/4.0/ 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/
spellingShingle Article
Busse, Frederik
Mansurova, Maria
Lenk, Benjamin
von der Ehe, Marvin
Münzenberg, Markus
A scenario for magnonic spin-wave traps
title A scenario for magnonic spin-wave traps
title_full A scenario for magnonic spin-wave traps
title_fullStr A scenario for magnonic spin-wave traps
title_full_unstemmed A scenario for magnonic spin-wave traps
title_short A scenario for magnonic spin-wave traps
title_sort scenario for magnonic spin-wave traps
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4642530/
https://www.ncbi.nlm.nih.gov/pubmed/26279466
http://dx.doi.org/10.1038/srep12824
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