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Quantitative investigation of magnetic domains with in-plane and out-of-plane easy axes in GaMnAs films by Hall effect
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10.1063/1.4794283
/content/aip/journal/jap/113/17/10.1063/1.4794283
http://aip.metastore.ingenta.com/content/aip/journal/jap/113/17/10.1063/1.4794283
View: Figures

Figures

Image of FIG. 1.
FIG. 1.

Temperature dependence of the resistance for GaMnAs at zero magnetic field. The peak position of the resistance provides an estimate of as 25 K. The inset shows coordinates for current , external field H, and magnetization M.

Image of FIG. 2.
FIG. 2.

Angular dependence of Hall resistance obtained for two measurement configurations. The data in the left panel are obtained by rotating a field of 1000 Oe within the film plane, i.e., by varying ; that in the right panel is obtained by varying , using a field of 500 Oe. The open (red) and solid (black) circles show data obtained by CW and CCW rotations of the field, respectively.

Image of FIG. 3.
FIG. 3.

Details of the process of magnetization reversal for a magnetic field applied in the plane along . By analyzing the values of PHR at specific points marked as (a)–(f), fractions of the sample area corresponding to magnetic domains with easy axes in-plane and out-of-plane are obtained. The calculated ratio between the fractions of domains dominated by in-plane and out-of-plane orientations of magnetization is about 1:5.7.

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/content/aip/journal/jap/113/17/10.1063/1.4794283
2013-03-05
2014-04-25
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752b84549af89a08dbdd7fdb8b9568b5 journal.articlezxybnytfddd
Scitation: Quantitative investigation of magnetic domains with in-plane and out-of-plane easy axes in GaMnAs films by Hall effect
http://aip.metastore.ingenta.com/content/aip/journal/jap/113/17/10.1063/1.4794283
10.1063/1.4794283
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