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Piezoelectric strain induced variation of the magnetic anisotropy in a high Curie temperature (Ga,Mn)As sample
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10.1063/1.4746250
/content/aip/journal/apl/101/8/10.1063/1.4746250
http://aip.metastore.ingenta.com/content/aip/journal/apl/101/8/10.1063/1.4746250
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Figures

Image of FIG. 1.
FIG. 1.

(a) Magnetic hysteresis loops measured by SQUID magnetometry at T = 150 K for annealed (Ga0.88,Mn0.12)As with the external magnetic field B applied along the [1–10] (closed squares) and [110] (open circles) directions. The solid line is the result of the fitting to the [110] loop using the Stoner-Wohlfarth model. (b) Definition of the angles used.

Image of FIG. 2.
FIG. 2.

Normalized transverse resistance Rxy R measured at T = 150 K as a function of the external magnetic field B applied at different in-plane angles ϑ for (a) VP  = +85 V and (b) VP  = −70 V. (c) Magnetic hysteresis loops measured by SQUID magnetometry at T = 150 K with B applied along the [1–10] direction and corresponding fittings. The insets in (a), (b), and (c) show the easy axis direction for each applied piezo-voltage VP .

Image of FIG. 3.
FIG. 3.

Dependence of the piezo-induced uniaxial magnetic anisotropy constant KUp on strain Δε at T = 150 K as derived from magneto-transport (closed squares) and SQUID magnetometry (open circles) experiments. The corresponding linear fits are shown by the dashed lines.

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/content/aip/journal/apl/101/8/10.1063/1.4746250
2012-08-21
2014-04-24
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752b84549af89a08dbdd7fdb8b9568b5 journal.articlezxybnytfddd
Scitation: Piezoelectric strain induced variation of the magnetic anisotropy in a high Curie temperature (Ga,Mn)As sample
http://aip.metastore.ingenta.com/content/aip/journal/apl/101/8/10.1063/1.4746250
10.1063/1.4746250
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