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Origin of ferromagnetism in self-assembled quantum dots grown on Si
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10.1063/1.3526378
/content/aip/journal/apl/97/24/10.1063/1.3526378
http://aip.metastore.ingenta.com/content/aip/journal/apl/97/24/10.1063/1.3526378
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Figures

Image of FIG. 1.
FIG. 1.

AFM analysis of QDs on Si (001). (a) A typical two-dimensional AFM image of the sample surface. (b) Height profile along the black line in (a).

Image of FIG. 2.
FIG. 2.

Cross-sectional TEM images of QDs grown on Si (001). (a) A large area image of the sample surface. (Right) The FFT patterns of the QD and Si substrate. (b) A HRTEM image of QD showing the detailed lattice structure. (c) EDS showing that Ga, Mn, and As are present in the QDs.

Image of FIG. 3.
FIG. 3.

SQUID measurements of QDs grown on Si (001). (a) The normalized field-dependent magnetization measured in the in-plane and out-of-plane directions. (Inset) The low field range. (b) ZFC and FC curves measured with an in-plane magnetic field of 200 Oe.

Image of FIG. 4.
FIG. 4.

Normalized Mn -edge XANES spectra of QDs and film.

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/content/aip/journal/apl/97/24/10.1063/1.3526378
2010-12-13
2014-04-23
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752b84549af89a08dbdd7fdb8b9568b5 journal.articlezxybnytfddd
Scitation: Origin of ferromagnetism in self-assembled Ga1−xMnxAs quantum dots grown on Si
http://aip.metastore.ingenta.com/content/aip/journal/apl/97/24/10.1063/1.3526378
10.1063/1.3526378
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