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Frequency tuning the ultrafast magnetization dynamics of FexPt100-x alloys
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10.1063/1.3691954
/content/aip/journal/jap/111/5/10.1063/1.3691954
http://aip.metastore.ingenta.com/content/aip/journal/jap/111/5/10.1063/1.3691954
View: Figures

Figures

Image of FIG. 1.
FIG. 1.

(Color online) (a) Measured saturation magnetization as a function of Fe content. (b) Experimental geometry. (c) Hysteresis loops taken on planar films (Fe content listed in legend) with an in-plane applied field.

Image of FIG. 2.
FIG. 2.

Time trace data and corresponding Fourier spectra for Fe60Pt40 (a) planar film and (b) individual 300 nm diameter dot at an applied field of 0.35 T. An SEM image of the individual d= 300 nm dot is shown in the FFT inset of (b).

Image of FIG. 3.
FIG. 3.

(Color online) Bias field dependence (in-plane component listed) of resonance frequencies of (a) planar films and (b) d = 300 nm dots with varying Fe content. The symbols with error bars represent the experimental data, while the dashed lines represent simulation results. The Fe content (at. %) is listed along the right hand side.

Image of FIG. 4.
FIG. 4.

(Color online) Comparison of (a) simulated and (b) measured peak oscillation frequencies plotted as a function of both the in-plane applied field and iron content. The dashed lines correspond to the d = 300 nm dot results and the solid lines are the film results.

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/content/aip/journal/jap/111/5/10.1063/1.3691954
2012-03-07
2014-04-18
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752b84549af89a08dbdd7fdb8b9568b5 journal.articlezxybnytfddd
Scitation: Frequency tuning the ultrafast magnetization dynamics of FexPt100-x alloys
http://aip.metastore.ingenta.com/content/aip/journal/jap/111/5/10.1063/1.3691954
10.1063/1.3691954
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