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Gilbert damping in perpendicularly magnetized Pt/Co/Pt films investigated by all-optical pump-probe technique
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10.1063/1.3396983
/content/aip/journal/apl/96/15/10.1063/1.3396983
http://aip.metastore.ingenta.com/content/aip/journal/apl/96/15/10.1063/1.3396983
View: Figures

Figures

Image of FIG. 1.
FIG. 1.

(a) The Co layer thickness dependence of coercivity for Pt/Co/Pt films. The curve is used as a visual guide. (b) A hysteresis loop for a Pt/Co(0.8 nm)/Pt film measured by PMOKE with applied field perpendicular to film plane. (c) The effective perpendicular magnetic anisotropy energy multiplied by as a function of as measured by PMOKE (●) and ferromagnetic resonance (○). Solid line is a fit to the experimental data.

Image of FIG. 2.
FIG. 2.

Signals of TRMOKE measured with applied field of 4 kOe directed at 60 deg. from the film normal in (a) Pt/Co(2.0 nm)/Pt and (b) Pt/Co(0.8 nm)/Pt films. Solid curves are the calculated damped harmonic function superposed on an exponential decay parameter-fitted to the experimental data.

Image of FIG. 3.
FIG. 3.

Magnetic field angle dependence of precession frequency (○) and inverse precession life-time (●) for (a) Pt/Co(2.0 nm)/Pt and (b) Pt/Co(0.8 nm)/Pt films. Solid and broken curves are the calculated data of and parameter-fitted to the experimental data.

Image of FIG. 4.
FIG. 4.

Inverse thickness dependence of (a) Gilbert damping constant and (b) relaxation frequency for films. The values obtained from the time-resolved magneto-optical Kerr effect and ferromagnetic resonance are shown with the solid (●) and open circles (○), respectively. The reported values of for films are also shown with open triangles (△). Solid and broken lines are fitted to the experimental data for .

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/content/aip/journal/apl/96/15/10.1063/1.3396983
2010-04-13
2014-04-18
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752b84549af89a08dbdd7fdb8b9568b5 journal.articlezxybnytfddd
Scitation: Gilbert damping in perpendicularly magnetized Pt/Co/Pt films investigated by all-optical pump-probe technique
http://aip.metastore.ingenta.com/content/aip/journal/apl/96/15/10.1063/1.3396983
10.1063/1.3396983
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