Figure 1 | Dual-shot magnetization dynamics acquired by a time-resolved magneto-optical imaging system. (IMAGE)
Caption
a, Schematic of the dual-shot magnetization dynamics acquired by a time-resolved magneto-optical imaging system. The inset illustrates the magnetization dynamics of Gd27Fe63.87Co9.13 under dual-shot excitation with certain conditions. ?t is the shot-to-shot separation between the first and second pulses. ?tc is the critical time delay. Rewriting or restoration of the switched magnetization may occur in no less than this amount of time. The solid and dashed red frames indicate the images acquired at the arrivals of the first and second shots, respectively. b, The magnetization dynamics of Gd27Fe63.87Co9.13 observed by the time-resolved imaging technique under dual-shot excitation with ?t = 450 ps, F1 = 5.50 mJ/cm2, and F2/F1 = 0.58. The scale bar is 40 μm. c, The normalized magnetization in the centre of the switched areas extracted from the images in (b). The red lines are guides for the eye.
Credit
by Sicong Wang, Chen Wei, Yuanhua Feng, Hongkun Cao, Wenzhe Li, Yaoyu Cao, Bai-Ou Guan, Arata Tsukamoto, Andrei Kirilyuk, Alexey V. Kimel, and Xiangping Li
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