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Journal Articles Applied Physics Letters Year : 2023

Ultrafast Single Pulse Switching of Tb-dominant CoTb Alloy

Sylvain Eimer
Grégory Malinowski
Michel Hehn
Stephane Mangin

Abstract

Single-pulse magnetization switching by femtosecond laser pulses is the fastest way to manipulate magnetization. To date, among rare-earth transition metal alloys, single-pulse switching is limited to Gd-based structures. Here, we demonstrate ultrafast single-pulse switching of Tb-dominant CoTb alloys within several tens of picoseconds. Our further analysis shows that the ultrafast magnetization reversal is linked to ultrafast heating of laser pulses and an external field.
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Dates and versions

hal-04031698 , version 1 (16-03-2023)

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Yongshan Liu, Houyi Cheng, Pierre Vallobra, Huiwen Wang, Sylvain Eimer, et al.. Ultrafast Single Pulse Switching of Tb-dominant CoTb Alloy. Applied Physics Letters, 2023, 122 (2), pp.022401. ⟨10.1063/5.0131716⟩. ⟨hal-04031698⟩
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