Size effect on single pulse all-optical helicity-independent switching in GdFeCo disk arrays

被引：0

作者：

Nyoma, Danny Petty Gweha ^{[1
]}

Verges, Maxime ^{[1
]}

Hehn, Michel ^{[1
]}

Lacour, Daniel ^{[1
]}

Hohlfeld, Julius ^{[1
]}

van Dijken, Sebastiaan ^{[2
]}

Malinowski, Gregory ^{[1
]}

Mangin, Stephane ^{[1
]}

Montaigne, Francois ^{[1
]}

机构：

[1] Univ Lorraine, CNRS, IJL, F-54000 Nancy, France

[2] Aalto Univ, Dept Appl Phys, NanoSpin, Sch Sci, FI-00076 Aalto, Finland

来源：

APPLIED PHYSICS LETTERS | 2023年 / 123卷 / 05期

基金：

欧盟地平线“2020”; 芬兰科学院;

关键词：

MAGNETIZATION REVERSAL; SPIN DYNAMICS; THIN-FILMS; ULTRAFAST;

D O I：

10.1063/5.0150250

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

We experimentally demonstrate single pulse toggle switching of the magnetization of GdFeCo disks with perpendicular to film plane anisotropy, which diameter ranges from 3 mu m to 400 nm using 35 fs linearly polarized laser pulses. Two different magnetic states can be observed depending on the laser fluence: either a deterministic switching of the disk magnetization or a randomly oriented disk. We report that the fluence required to observe both magnetic states show a non-monotonic behavior with disk diameter and that the smallest disks require the lowest minimum fluence for achieving single pulse all-optical helicity-independent switching. Different evolution of the fluence thresholds for both phenomenon as a function of the disk size is observed and discussed.

引用

页数：6

共 20 条

[1] Role of electron and phonon temperatures in the helicity-independent all-optical switching of GdFeCo
Gorchon, J.
Wilson, R. B.
Yang, Y.
Pattabi, A.
Chen, J. Y.
He, L.
Wang, J. P.
Li, M.
Bokor, J.
PHYSICAL REVIEW B, 2016, 94 (18)
[2] Ultrafast write-read event in helicity-independent all-optical switching of GdFeCo
Liu, Donglin
Weng, Jiawen
Song, Xinyu
Cai, Wenxi
Tan, Suiyan
Xu, Chudong
JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS, 2024, 592
[3] Helicity-independent all-optical switching of magnetization in ferrimagnetic alloys
Davies, C. S.
Mentink, J. H.
Kimel, A. V.
Rasing, Th.
Kirilyuk, A.
JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS, 2022, 563
[4] Single shot all-optical switching in amorphous TbCo and the role of element specific damping on helicity-independent all-optical switching
Prasad, P. Syam
Mohanty, Jyoti Ranjan
JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS, 2023, 575
[5] Unidirectional multipulse helicity-independent all-optical switching in [Ni/Pt] based synthetic ferrimagnets
Sait, Connor R. J.
Dabrowski, Maciej
Scott, Jade N.
Hendren, William R.
Newman, David G.
N'Diaye, Alpha T.
Klewe, Christoph
Shafer, Padraic
van der Laan, Gerrit
Keatley, Paul S.
Bowman, Robert M.
Hicken, Robert J.
PHYSICAL REVIEW B, 2024, 109 (13)
[6] All-optical Helicity-Independent Switching State Diagram in Gd-Fe-Co Alloys
Wei, Jiaqi
Zhang, Boyu
Hehn, Michel
Zhang, Wei
Malinowski, Gregory
Xu, Yong
Zhao, Weisheng
Mangin, Stephane
PHYSICAL REVIEW APPLIED, 2021, 15 (05):
[7] Different helicity dependency of all-optical magnetization switching in GdFeCo films with optical interference layer
Yoshikawa, Hiroki
Tajima, Daiki
Kasatani, Yuichi
Tsukamoto, Arata
JAPANESE JOURNAL OF APPLIED PHYSICS, 2023, 62 (SB)
[8] Materials and devices for all-optical helicity-dependent switching
El Hadri, Mohammed Salah
Hehn, Michel
Malinowski, Gregory
Mangin, Stephane
JOURNAL OF PHYSICS D-APPLIED PHYSICS, 2017, 50 (13)
[9] Nanoscale sub-100 picosecond all-optical magnetization switching in GdFeCo microstructures
Le Guyader, L.
Savoini, M.
El Moussaoui, S.
Buzzi, M.
Tsukamoto, A.
Itoh, A.
Kirilyuk, A.
Rasing, T.
Kimel, A. V.
Nolting, F.
NATURE COMMUNICATIONS, 2015, 6
[10] Manipulating exchange bias using all-optical helicity-dependent switching
Vallobra, P.
Fache, T.
Xu, Y.
Zhang, L.
Malinowski, G.
Hehn, M.
Rojas-Sanchez, J. -C.
Fullerton, E. E.
Mangin, S.
PHYSICAL REVIEW B, 2017, 96 (14)

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