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Ultrafast optical manipulation of magnetic order in ferromagnetic materials
The interaction between ultrafast lasers and magnetic materials is an appealing topic. It not only involves interesting fundamental questions that remain inconclusive and hence need further investigation, but also has the potential to revolutionize data storage technologies because such an opto-magn...
Autores principales: | , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
Springer Singapore
2020
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7655883/ https://www.ncbi.nlm.nih.gov/pubmed/33170368 http://dx.doi.org/10.1186/s40580-020-00246-3 |
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author | Wang, Chuangtang Liu, Yongmin |
author_facet | Wang, Chuangtang Liu, Yongmin |
author_sort | Wang, Chuangtang |
collection | PubMed |
description | The interaction between ultrafast lasers and magnetic materials is an appealing topic. It not only involves interesting fundamental questions that remain inconclusive and hence need further investigation, but also has the potential to revolutionize data storage technologies because such an opto-magnetic interaction provides an ultrafast and energy-efficient means to control magnetization. Fruitful progress has been made in this area over the past quarter century. In this paper, we review the state-of-the-art experimental and theoretical studies on magnetization dynamics and switching in ferromagnetic materials that are induced by ultrafast lasers. We start by describing the physical mechanisms of ultrafast demagnetization based on different experimental observations and theoretical methods. Both the spin-flip scattering theory and the superdiffusive spin transport model will be discussed in detail. Then, we will discuss laser-induced torques and resultant magnetization dynamics in ferromagnetic materials. Recent developments of all-optical switching (AOS) of ferromagnetic materials towards ultrafast magnetic storage and memory will also be reviewed, followed by the perspectives on the challenges and future directions in this emerging area. |
format | Online Article Text |
id | pubmed-7655883 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2020 |
publisher | Springer Singapore |
record_format | MEDLINE/PubMed |
spelling | pubmed-76558832020-11-12 Ultrafast optical manipulation of magnetic order in ferromagnetic materials Wang, Chuangtang Liu, Yongmin Nano Converg Review The interaction between ultrafast lasers and magnetic materials is an appealing topic. It not only involves interesting fundamental questions that remain inconclusive and hence need further investigation, but also has the potential to revolutionize data storage technologies because such an opto-magnetic interaction provides an ultrafast and energy-efficient means to control magnetization. Fruitful progress has been made in this area over the past quarter century. In this paper, we review the state-of-the-art experimental and theoretical studies on magnetization dynamics and switching in ferromagnetic materials that are induced by ultrafast lasers. We start by describing the physical mechanisms of ultrafast demagnetization based on different experimental observations and theoretical methods. Both the spin-flip scattering theory and the superdiffusive spin transport model will be discussed in detail. Then, we will discuss laser-induced torques and resultant magnetization dynamics in ferromagnetic materials. Recent developments of all-optical switching (AOS) of ferromagnetic materials towards ultrafast magnetic storage and memory will also be reviewed, followed by the perspectives on the challenges and future directions in this emerging area. Springer Singapore 2020-11-10 /pmc/articles/PMC7655883/ /pubmed/33170368 http://dx.doi.org/10.1186/s40580-020-00246-3 Text en © The Author(s) 2020 Open AccessThis 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/. |
spellingShingle | Review Wang, Chuangtang Liu, Yongmin Ultrafast optical manipulation of magnetic order in ferromagnetic materials |
title | Ultrafast optical manipulation of magnetic order in ferromagnetic materials |
title_full | Ultrafast optical manipulation of magnetic order in ferromagnetic materials |
title_fullStr | Ultrafast optical manipulation of magnetic order in ferromagnetic materials |
title_full_unstemmed | Ultrafast optical manipulation of magnetic order in ferromagnetic materials |
title_short | Ultrafast optical manipulation of magnetic order in ferromagnetic materials |
title_sort | ultrafast optical manipulation of magnetic order in ferromagnetic materials |
topic | Review |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7655883/ https://www.ncbi.nlm.nih.gov/pubmed/33170368 http://dx.doi.org/10.1186/s40580-020-00246-3 |
work_keys_str_mv | AT wangchuangtang ultrafastopticalmanipulationofmagneticorderinferromagneticmaterials AT liuyongmin ultrafastopticalmanipulationofmagneticorderinferromagneticmaterials |