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Non-thermal excitation and control of magnetization in Fe/GaAs film by ultrafast laser pulses
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10.1063/1.3675158
/content/aip/journal/jap/111/7/10.1063/1.3675158
http://aip.metastore.ingenta.com/content/aip/journal/jap/111/7/10.1063/1.3675158
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Figures

Image of FIG. 1.
FIG. 1.

(Color online) (a) Sample geometry. Pump beam was incident normal to the film plane while the probe was incident at 45° with respect to the normal of the sample plane. The angle θ is the pump polarization angle compared to the axis of the sample. (b) Signal collection system. The reflected probe beam was turned into p-polarized and s-polarized beams by the polarized cube. A balance detector was used to determined the DMK Signal. (c) Pump-probe DMK curves under various pump polarization angles.

Image of FIG. 2.
FIG. 2.

(Color online) (a) Excitation amplitude as a function of pump polarization. (b) Evolution of DMK spectra around the axis.

Image of FIG. 3.
FIG. 3.

(Color online) Oscillation frequency as a function of applied field. The line is the fit to the data.

Image of FIG. 4.
FIG. 4.

(Color online) (a) Excitation amplitude as a function of pump polarization from −0.4° to 0.5° compared to the axis. The inset shows the schematic diagram of magnetization reorientation. (b) Pump-probe DMK spectra under various pump powers.

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/content/aip/journal/jap/111/7/10.1063/1.3675158
2012-02-29
2014-04-24
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752b84549af89a08dbdd7fdb8b9568b5 journal.articlezxybnytfddd
Scitation: Non-thermal excitation and control of magnetization in Fe/GaAs film by ultrafast laser pulses
http://aip.metastore.ingenta.com/content/aip/journal/jap/111/7/10.1063/1.3675158
10.1063/1.3675158
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