Cargando…
Ferromagnetic domain walls as spin wave filters and the interplay between domain walls and spin waves
Spin waves (SW) are low energy excitations of magnetization in magnetic materials. In the promising field of magnonics, fundamental SW modes, magnons, are accessible in magnetic nanostructure waveguides and carry information. The SW propagates in both metals and insulators via magnetization dynamics...
Autores principales: | , , , , , |
---|---|
Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
Nature Publishing Group UK
2018
|
Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5834505/ https://www.ncbi.nlm.nih.gov/pubmed/29500388 http://dx.doi.org/10.1038/s41598-018-22272-2 |
_version_ | 1783303657517744128 |
---|---|
author | Chang, Liang-Juan Liu, Yen-Fu Kao, Ming-Yi Tsai, Li-Zai Liang, Jun-Zhi Lee, Shang-Fan |
author_facet | Chang, Liang-Juan Liu, Yen-Fu Kao, Ming-Yi Tsai, Li-Zai Liang, Jun-Zhi Lee, Shang-Fan |
author_sort | Chang, Liang-Juan |
collection | PubMed |
description | Spin waves (SW) are low energy excitations of magnetization in magnetic materials. In the promising field of magnonics, fundamental SW modes, magnons, are accessible in magnetic nanostructure waveguides and carry information. The SW propagates in both metals and insulators via magnetization dynamics. Energy dissipation through damping can be low compared to the Joule heating in conventional circuits. We performed simulations in a quasi-one-dimensional ferromagnetic strip and found that the transmission of the propagating SW across the domain wall (DW) depends strongly on the tilt angle of the magnetization at low frequencies. When the SW amplitude is large, the magnetization tilt angle inside the DW changes due to the effective fields. The SW transmission, the DW motion, and the magnetization tilt angle couple to each other, which results in complex DW motion and SW transmission. Both SW filtering and DW motions are key ingredients in magnonics. |
format | Online Article Text |
id | pubmed-5834505 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2018 |
publisher | Nature Publishing Group UK |
record_format | MEDLINE/PubMed |
spelling | pubmed-58345052018-03-05 Ferromagnetic domain walls as spin wave filters and the interplay between domain walls and spin waves Chang, Liang-Juan Liu, Yen-Fu Kao, Ming-Yi Tsai, Li-Zai Liang, Jun-Zhi Lee, Shang-Fan Sci Rep Article Spin waves (SW) are low energy excitations of magnetization in magnetic materials. In the promising field of magnonics, fundamental SW modes, magnons, are accessible in magnetic nanostructure waveguides and carry information. The SW propagates in both metals and insulators via magnetization dynamics. Energy dissipation through damping can be low compared to the Joule heating in conventional circuits. We performed simulations in a quasi-one-dimensional ferromagnetic strip and found that the transmission of the propagating SW across the domain wall (DW) depends strongly on the tilt angle of the magnetization at low frequencies. When the SW amplitude is large, the magnetization tilt angle inside the DW changes due to the effective fields. The SW transmission, the DW motion, and the magnetization tilt angle couple to each other, which results in complex DW motion and SW transmission. Both SW filtering and DW motions are key ingredients in magnonics. Nature Publishing Group UK 2018-03-02 /pmc/articles/PMC5834505/ /pubmed/29500388 http://dx.doi.org/10.1038/s41598-018-22272-2 Text en © The Author(s) 2018 Open Access 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 license, and indicate if changes were made. The images or other third party material in this article are included in the article’s Creative Commons license, unless indicated otherwise in a credit line to the material. If material is not included in the article’s Creative Commons license 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 license, visit http://creativecommons.org/licenses/by/4.0/. |
spellingShingle | Article Chang, Liang-Juan Liu, Yen-Fu Kao, Ming-Yi Tsai, Li-Zai Liang, Jun-Zhi Lee, Shang-Fan Ferromagnetic domain walls as spin wave filters and the interplay between domain walls and spin waves |
title | Ferromagnetic domain walls as spin wave filters and the interplay between domain walls and spin waves |
title_full | Ferromagnetic domain walls as spin wave filters and the interplay between domain walls and spin waves |
title_fullStr | Ferromagnetic domain walls as spin wave filters and the interplay between domain walls and spin waves |
title_full_unstemmed | Ferromagnetic domain walls as spin wave filters and the interplay between domain walls and spin waves |
title_short | Ferromagnetic domain walls as spin wave filters and the interplay between domain walls and spin waves |
title_sort | ferromagnetic domain walls as spin wave filters and the interplay between domain walls and spin waves |
topic | Article |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5834505/ https://www.ncbi.nlm.nih.gov/pubmed/29500388 http://dx.doi.org/10.1038/s41598-018-22272-2 |
work_keys_str_mv | AT changliangjuan ferromagneticdomainwallsasspinwavefiltersandtheinterplaybetweendomainwallsandspinwaves AT liuyenfu ferromagneticdomainwallsasspinwavefiltersandtheinterplaybetweendomainwallsandspinwaves AT kaomingyi ferromagneticdomainwallsasspinwavefiltersandtheinterplaybetweendomainwallsandspinwaves AT tsailizai ferromagneticdomainwallsasspinwavefiltersandtheinterplaybetweendomainwallsandspinwaves AT liangjunzhi ferromagneticdomainwallsasspinwavefiltersandtheinterplaybetweendomainwallsandspinwaves AT leeshangfan ferromagneticdomainwallsasspinwavefiltersandtheinterplaybetweendomainwallsandspinwaves |