학술논문
Ultrafast single-pulse switching of Tb-dominant CoTb alloy.
Document Type
Article
Author
Source
Subject
*TRANSITION metal alloys
*FEMTOSECOND pulses
*LASER pulses
*MAGNETIZATION reversal
*ALLOYS
*RARE earth metal alloys
*TERBIUM
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Language
ISSN
0003-6951
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. [ABSTRACT FROM AUTHOR]