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Spin relaxation and dephasing mechanism in (Ga,Mn)As studied by time-resolved Kerr rotation
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10.1063/1.3116716
/content/aip/journal/apl/94/14/10.1063/1.3116716
http://aip.metastore.ingenta.com/content/aip/journal/apl/94/14/10.1063/1.3116716
View: Figures

Figures

Image of FIG. 1.
FIG. 1.

Time evolution of Kerr rotation for (Ga,Mn)As excited by linearly polarized and circularly polarized ( and ) light at 8 K without external magnetic field.

Image of FIG. 2.
FIG. 2.

Spin relaxation time as a function of temperature with pump intensity of 8 mW (a) and as a function of pump intensity at (b).

Image of FIG. 3.
FIG. 3.

Magneto-optical Kerr rotation signals under different temperatures with external magnetic field of 1 T for (Ga,Mn)As. The intensities of pump and probe beam were 0.75 and 7.5 mW, respectively. For an easier overview, the curves are shifted vertically.

Image of FIG. 4.
FIG. 4.

Temperature dependence of amplitude (a), dephasing time, (c) and precession frequency (e) measured at pump intensity of 7.5 mW. Pump intensity dependence of amplitude (b), dephasing time, (d) and precession frequency (f) measured at .

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/content/aip/journal/apl/94/14/10.1063/1.3116716
2009-04-10
2014-04-17
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752b84549af89a08dbdd7fdb8b9568b5 journal.articlezxybnytfddd
Scitation: Spin relaxation and dephasing mechanism in (Ga,Mn)As studied by time-resolved Kerr rotation
http://aip.metastore.ingenta.com/content/aip/journal/apl/94/14/10.1063/1.3116716
10.1063/1.3116716
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