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Magnetic domain-dependent ultrafast optical demagnetization in stripe domain films.

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Title: Magnetic domain-dependent ultrafast optical demagnetization in stripe domain films.
Authors: Chen, Xiaowen1 (AUTHOR), Adam, Roman1,2 (AUTHOR), Wang, Fangzhou2 (AUTHOR), Song, Yawen1 (AUTHOR), Pan, Lining3 (AUTHOR), Song, Chengkun4 (AUTHOR), Heidtfeld, Sarah2 (AUTHOR), Greb, Christian2 (AUTHOR), Li, Qiuyue1 (AUTHOR), Yu, Jing1 (AUTHOR), Zhang, Jing1 (AUTHOR), Cui, Yuanzhi1 (AUTHOR), Li, Shandong1 (AUTHOR), Xu, Jie1 (AUTHOR), Cinchetti, Mirko5 (AUTHOR), Schneider, Claus M2,6,7 (AUTHOR), Cao, Derang1,2,8 (AUTHOR) caodr@qdu.edu.cn
Source: Journal of Physics D: Applied Physics. 7/13/2023, Vol. 56 Issue 28, p1-14. 14p.
Subjects: Demagnetization, Magnetic anisotropy, Magnetic moments, Magnetic films, Stripes
Abstract: We investigated femto- and picosecond-time magnetization dynamics in a ferromagnetic Ni80Fe20 film with varying thicknesses (wedge-shaped film). We observed that the thickness gradient strongly affects the magnetic moment distribution, causing a magnetization reorientation from in-plane to out-of-plane, and formatting a stripe domain (SD) at the thicker end of the wedge. The magnetization dynamics measurements reveal that the part of the film displaying SDs follows a substantially faster demagnetization and magnetization recovery and smaller magnetization quenching compared to the in-plane domain film. The experiments and micromagnetic simulations support that the decrease in relaxation time is caused by a magnetic anisotropy of the films introduced by SD formation. Our results point out that the micromagnetic structure plays an important role in the magnetization dynamics in ferromagnetic films after optically triggered demagnetization. [ABSTRACT FROM AUTHOR]
Copyright of Journal of Physics D: Applied Physics is the property of IOP Publishing and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
Database: Engineering Source
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Header DbId: egs
DbLabel: Engineering Source
An: 163484180
AccessLevel: 6
PubType: Academic Journal
PubTypeId: academicJournal
PreciseRelevancyScore: 0
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  Data: Magnetic domain-dependent ultrafast optical demagnetization in stripe domain films.
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  Data: <searchLink fieldCode="AR" term="%22Chen%2C+Xiaowen%22">Chen, Xiaowen</searchLink><relatesTo>1</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Adam%2C+Roman%22">Adam, Roman</searchLink><relatesTo>1,2</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Wang%2C+Fangzhou%22">Wang, Fangzhou</searchLink><relatesTo>2</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Song%2C+Yawen%22">Song, Yawen</searchLink><relatesTo>1</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Pan%2C+Lining%22">Pan, Lining</searchLink><relatesTo>3</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Song%2C+Chengkun%22">Song, Chengkun</searchLink><relatesTo>4</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Heidtfeld%2C+Sarah%22">Heidtfeld, Sarah</searchLink><relatesTo>2</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Greb%2C+Christian%22">Greb, Christian</searchLink><relatesTo>2</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Li%2C+Qiuyue%22">Li, Qiuyue</searchLink><relatesTo>1</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Yu%2C+Jing%22">Yu, Jing</searchLink><relatesTo>1</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Zhang%2C+Jing%22">Zhang, Jing</searchLink><relatesTo>1</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Cui%2C+Yuanzhi%22">Cui, Yuanzhi</searchLink><relatesTo>1</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Li%2C+Shandong%22">Li, Shandong</searchLink><relatesTo>1</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Xu%2C+Jie%22">Xu, Jie</searchLink><relatesTo>1</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Cinchetti%2C+Mirko%22">Cinchetti, Mirko</searchLink><relatesTo>5</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Schneider%2C+Claus+M%22">Schneider, Claus M</searchLink><relatesTo>2,6,7</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Cao%2C+Derang%22">Cao, Derang</searchLink><relatesTo>1,2,8</relatesTo> (AUTHOR)<i> caodr@qdu.edu.cn</i>
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  Data: <searchLink fieldCode="JN" term="%22Journal+of+Physics+D%3A+Applied+Physics%22">Journal of Physics D: Applied Physics</searchLink>. 7/13/2023, Vol. 56 Issue 28, p1-14. 14p.
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  Data: <searchLink fieldCode="DE" term="%22Demagnetization%22">Demagnetization</searchLink><br /><searchLink fieldCode="DE" term="%22Magnetic+anisotropy%22">Magnetic anisotropy</searchLink><br /><searchLink fieldCode="DE" term="%22Magnetic+moments%22">Magnetic moments</searchLink><br /><searchLink fieldCode="DE" term="%22Magnetic+films%22">Magnetic films</searchLink><br /><searchLink fieldCode="DE" term="%22Stripes%22">Stripes</searchLink>
– Name: Abstract
  Label: Abstract
  Group: Ab
  Data: We investigated femto- and picosecond-time magnetization dynamics in a ferromagnetic Ni80Fe20 film with varying thicknesses (wedge-shaped film). We observed that the thickness gradient strongly affects the magnetic moment distribution, causing a magnetization reorientation from in-plane to out-of-plane, and formatting a stripe domain (SD) at the thicker end of the wedge. The magnetization dynamics measurements reveal that the part of the film displaying SDs follows a substantially faster demagnetization and magnetization recovery and smaller magnetization quenching compared to the in-plane domain film. The experiments and micromagnetic simulations support that the decrease in relaxation time is caused by a magnetic anisotropy of the films introduced by SD formation. Our results point out that the micromagnetic structure plays an important role in the magnetization dynamics in ferromagnetic films after optically triggered demagnetization. [ABSTRACT FROM AUTHOR]
– Name: AbstractSuppliedCopyright
  Label:
  Group: Ab
  Data: <i>Copyright of Journal of Physics D: Applied Physics is the property of IOP Publishing and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract.</i> (Copyright applies to all Abstracts.)
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        Value: 10.1088/1361-6463/accd7d
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      – Code: eng
        Text: English
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        PageCount: 14
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      – SubjectFull: Demagnetization
        Type: general
      – SubjectFull: Magnetic anisotropy
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      – SubjectFull: Magnetic moments
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      – SubjectFull: Magnetic films
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      – SubjectFull: Stripes
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      – TitleFull: Magnetic domain-dependent ultrafast optical demagnetization in stripe domain films.
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              M: 07
              Text: 7/13/2023
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              Y: 2023
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