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Optically pumped spin-polarized carrier transport across interfaces
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10.1063/1.2167071
/content/aip/journal/jap/99/8/10.1063/1.2167071
http://aip.metastore.ingenta.com/content/aip/journal/jap/99/8/10.1063/1.2167071
View: Figures

Figures

Image of FIG. 1.
FIG. 1.

Schematic diagram of the helicity-dependent photocurrent measurement.

Image of FIG. 2.
FIG. 2.

(a) SEM image and (b) MFM image of a wire array sample for optical measurements. Inset of (a) is a RHEED pattern of an epitaxial Fe layer on GaAs before patterning.

Image of FIG. 3.
FIG. 3.

Helicity-dependent photocurrent at 8.3 K as a function of magnetic field perpendicular to the layer plane for sample (C). The inset shows the magnetization curve of the corresponding Fe layer before patterning. The arrow indicates the maximum magnetic field for helicity-dependent photocurrent measurements.

Image of FIG. 4.
FIG. 4.

(a) Helicity-dependent photocurrent at 3.8 and as a function of temperature. Temperature variation of photocurrent is also shown. (b) Spin selectivity at the -GaAs interface estimated from the data shown in Fig. 4(a).

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/content/aip/journal/jap/99/8/10.1063/1.2167071
2006-04-20
2014-04-20
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752b84549af89a08dbdd7fdb8b9568b5 journal.articlezxybnytfddd
Scitation: Optically pumped spin-polarized carrier transport across Fewire∕GaAs interfaces
http://aip.metastore.ingenta.com/content/aip/journal/jap/99/8/10.1063/1.2167071
10.1063/1.2167071
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