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Time resolved pump-probe scattering in MnAs/GaAs(001): A look into the dynamics of α-β stripe domains
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10.1063/1.4720398
/content/aip/journal/apl/100/21/10.1063/1.4720398
http://aip.metastore.ingenta.com/content/aip/journal/apl/100/21/10.1063/1.4720398
View: Figures

Figures

Image of FIG. 1.
FIG. 1.

Comparison of rocking scans measured using λ = 1.93 nm (ω = 16°, filled circles) and λ = 130 nm (ω = 120°, open squares) radiation. Intensity values refer to the specular peak. Side peaks at 4.38 μm−1 correspond to an order parameter p of 1435 nm.

Image of FIG. 2.
FIG. 2.

Temperature dependence of the Bragg peak intensity in a thermal cycle from 50 °C to 12 °C and back. Sample and detector angles are θ = 63.2° and ω = 120°, respectively. The circle indicates the working temperature for time-dependent measurements (34 °C upon cooling).

Image of FIG. 3.
FIG. 3.

Calculated average width of β-phase stripes as a function of the Bragg peak intensity. According to the cooling cycle of Fig. 2, the continuous curve (dominating β phase) corresponds to the 50 °C to 32 °C temperature region.

Image of FIG. 4.
FIG. 4.

(a) Diffraction peak intensity as a function of the probe-to-pump delay. The continuous line is an exponential decay fit to the data, for t > 0. (b) Same data as in (a), showing the equivalent average width of β-stripes calculated according to the top curve of Fig. 3.

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/content/aip/journal/apl/100/21/10.1063/1.4720398
2012-05-22
2014-04-16
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752b84549af89a08dbdd7fdb8b9568b5 journal.articlezxybnytfddd
Scitation: Time resolved pump-probe scattering in MnAs/GaAs(001): A look into the dynamics of α-β stripe domains
http://aip.metastore.ingenta.com/content/aip/journal/apl/100/21/10.1063/1.4720398
10.1063/1.4720398
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