Extending the scope and understanding of all-optical magnetization switching in Gd-based alloys by controlling the underlying temperature transients

被引：2

作者：

Verges, Maxime ^{[1
]}

Zhang, Wei ^{[1
]}

Remy, Quentin ^{[1
]}

Le-Guen, Yann ^{[1
]}

Gorchon, Jon ^{[1
]}

Malinowski, Gregory ^{[1
]}

Mangin, Stephane ^{[1
]}

Hehn, Michel ^{[1
]}

Hohlfeld, Julius ^{[1
]}

机构：

[1] Univ Lorraine, Inst Jean Lamour, CNRS UMR 7198, F-54506 Vandoeuvre Ies Nancy, France

来源：

PHYSICAL REVIEW APPLIED | 2024年 / 21卷 / 04期

关键词：

EXCITATION; ELECTRON; REVERSAL;

D O I：

10.1103/PhysRevApplied.21.044003

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

We use the thickness of Cu layers to control all -optical switching of magnetization in adjacent Gd24(Fe90Co10)76 films. While increasing the Cu thickness from 5 to 900 nm has no effect on the switching threshold, it significantly enlarges the fluence and pulse duration at which multiple domains emerge. Having shown that thermally activated multidomain formation limits the maximum fluence and pulse duration for controlled switching, we demonstrate that continuous magnetization reversal precedes multidomain formation in Gd18Dy4Co78 films excited with fluences slightly larger than the multidomain threshold.

引用

页数：6

共 5 条

[1] Criteria to observe single-shot all-optical switching in Gd-based ferrimagnetic alloys
Zhang, Wei
Hohlfeld, Julius
Huang, Tian Xun
Lin, Jun Xiao
Hehn, Michel
Le Guen, Yann
Compton-Stewart, Jude
Malinowski, Gregory
Zhao, Wei Sheng
Mangin, Stephane
PHYSICAL REVIEW B, 2024, 109 (09)
[2] Temperature Dependence of All-Optical Ultrafast Magnetization Switching in TbFeCo
Cheng, T. Y.
Wu, J.
Willcox, M.
Liu, T.
Cai, J. W.
Chantrell, R. W.
Xu, Y. B.
IEEE TRANSACTIONS ON MAGNETICS, 2012, 48 (11) : 3387 - 3389
[3] Deterministic character of all-optical magnetization switching in GdFe-based ferrimagnetic alloys
Le Guyader, L.
El Moussaoui, S.
Buzzi, M.
Savoini, M.
Tsukamoto, A.
Itoh, A.
Kirilyuk, A.
Rasing, Th.
Nolting, F.
Kimel, A. V.
PHYSICAL REVIEW B, 2016, 93 (13)
[4] 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
[5] Single-shot all-optical switching of magnetization in Tb/Co multilayer-based electrodes
Aviles-Felix, L.
Olivier, A.
Li, G.
Davies, C. S.
Alvaro-Gomez, L.
Rubio-Roy, M.
Auffret, S.
Kirilyuk, A.
Kimel, A., V
Rasing, Th
Buda-Prejbeanu, L. D.
Sousa, R. C.
Dieny, B.
Prejbeanu, I. L.
SCIENTIFIC REPORTS, 2020, 10 (01)

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