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Spin precession modulation in a magnetic bilayer
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View: Figures


Image of FIG. 1.
FIG. 1.

Sample configuration and the experimental geometry with the external magnetic field H applied out-of-plane.

Image of FIG. 2.
FIG. 2.

Magneto-optical rotation of Co/garnet bilayer using (a) L-MOKE and (b) Faraday techniques. (c) Experimental FMR line with marked values of the bandwidth ΔH for contributions of 2 nm Co layer and 1.8 μm garnet film.

Image of FIG. 3.
FIG. 3.

Time-resolved Faraday rotation as a function of the delay time Δt for different amplitudes of the applied magnetic field H. The red solid lines were fitted using FFT analysis and Eq. (1) .

Image of FIG. 4.
FIG. 4.

Frequency as a function of amplitude of external field H for garnet (full points) and Co (open points) contributions of a bilayer. Error bars are smaller than the data point markers. The calculated FMR frequency curves are also shown using the magnetic anisotropy constants (solid lines) and measured FMR data (stars). The top panel is a graphical illustration of the precessional dynamics for (a) H = 1.47 kOe, (b) 2.31 kOe, and (c) 4.22 kOe.


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752b84549af89a08dbdd7fdb8b9568b5 journal.articlezxybnytfddd
Scitation: Spin precession modulation in a magnetic bilayer