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The pinning role of nonferromagnetic phase in the domain wall motion of ferromagnetic MnAs film on GaAs(001)
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10.1063/1.2832625
/content/aip/journal/jap/103/7/10.1063/1.2832625
http://aip.metastore.ingenta.com/content/aip/journal/jap/103/7/10.1063/1.2832625
View: Figures

Figures

Image of FIG. 1.
FIG. 1.

(a) Typical XRD data of a MnAs film at different temperatures in the temperature range of , where the temperature was controlled by a radiative heating stage with an accuracy of . (b) Schematic diagram showing the coexistence of two different phases, and , in a MnAs film. Two phases are formed with periodic stripe patterns, where the and stripes are aligned along the MnAs[0001] axis and are perpendicular to the magnetic easy axis .

Image of FIG. 2.
FIG. 2.

(a) Variation of the coercivity of the MnAs film with the applied field direction at different temperatures in the temperature range of , where the applied field direction is relative to the easy axis on the sample plane. The coercivity at each temperature is normalized by the coercivity at , which is denoted as . (b) Variation of the coercivity of the MnAs film with temperature.

Image of FIG. 3.
FIG. 3.

(a) DW pinning energy density as a function of the temperature and (b) DW pinning energy density as a function of the volume fraction of the phase in the temperature range of , where the volume fraction of the phase is determined from the temperature-dependent XRD results in Fig. 1(a).

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/content/aip/journal/jap/103/7/10.1063/1.2832625
2008-02-04
2014-04-19
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752b84549af89a08dbdd7fdb8b9568b5 journal.articlezxybnytfddd
Scitation: The pinning role of nonferromagnetic β phase in the domain wall motion of ferromagnetic MnAs film on GaAs(001)
http://aip.metastore.ingenta.com/content/aip/journal/jap/103/7/10.1063/1.2832625
10.1063/1.2832625
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