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Ultrafast magnetization relaxation of -ordered alloy thin film
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10.1063/1.3559845
/content/aip/journal/apl/98/9/10.1063/1.3559845
http://aip.metastore.ingenta.com/content/aip/journal/apl/98/9/10.1063/1.3559845
View: Figures

Figures

Image of FIG. 1.
FIG. 1.

(a) Time-resolved polar Kerr signal measured with various magnetic fields at and . Each curve is upshifted for clarity. (b) Static Kerr loops measured at several representative times. The signal difference before and after the pump excitation corresponds to the time-resolved Kerr signal. (c) Precession signal (black circles) and its fitting curve (red solid line) after considering the time trace of the remagnetization (blue rectangles).

Image of FIG. 2.
FIG. 2.

External magnetic field dependence of the precession frequency (black rectangles) and the relaxation characteristic time (blue circles) (a), and of the Gilbert damping parameter (b) at .

Image of FIG. 3.
FIG. 3.

Visualization of the trajectory, vs in real space at . By judging from the lack of a turning point in , it is suggested that the relaxation time is comparable to the precession period.

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/content/aip/journal/apl/98/9/10.1063/1.3559845
2011-03-03
2014-04-17
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752b84549af89a08dbdd7fdb8b9568b5 journal.articlezxybnytfddd
Scitation: Ultrafast magnetization relaxation of L10-ordered Fe50Pt50 alloy thin film
http://aip.metastore.ingenta.com/content/aip/journal/apl/98/9/10.1063/1.3559845
10.1063/1.3559845
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