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Temperature-dependent magnetic anisotropies in epitaxial Fe/CoO/MgO(001) system studied by the planar Hall effect
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10.1063/1.3606531
/content/aip/journal/apl/98/26/10.1063/1.3606531
http://aip.metastore.ingenta.com/content/aip/journal/apl/98/26/10.1063/1.3606531
View: Figures

Figures

Image of FIG. 1.
FIG. 1.

(Color online) The typical RHEED patterns of (a) CoO/MgO(001) and (b) Fe/CoO/MgO(001). (c) The hysteresis loops of Fe(4 nm)/CoO (3 nm)/MgO(001) measured at 300 K and 81 K with H//Fe[100]. (d) The CoO thickness dependence of H C and H E measured at 300 K and 81 K.

Image of FIG. 2.
FIG. 2.

(Color online) (a) The typical planar Hall resistance (R xy ) of an Fe(4 nm)/CoO(5 nm)/MgO(001) sample at T = 320 K with the different field orientation φH . The solid line is a sin 2φH curve. The inset indicates the sample geometry. (b) The derived torque curve τ(φM ) using Eq. (3). The solid line is the fitting curve.

Image of FIG. 3.
FIG. 3.

(Color online) (a)-(d) The torque curves τ(ϕM ) measured at different temperatures from the Fe(4 nm)/CoO(5 nm)/MgO(001) sample after field cooling. The H CF is 2 kOe perpendicular to the current. (e) The fitted magnetic anisotropies of K u and K4 as a function of temperature.

Image of FIG. 4.
FIG. 4.

(Color online) The torque curves τ(φM ) measured at 10 K from Fe(4 nm)/CoO(3 nm)/MgO(001) after field cooling with the H CF (a) perpendicular and (b) parallel to the current. (c) The easy axis orientation and (d) the strength of K u with the different orientation of the cooling field.

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/content/aip/journal/apl/98/26/10.1063/1.3606531
2011-07-01
2014-04-20
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752b84549af89a08dbdd7fdb8b9568b5 journal.articlezxybnytfddd
Scitation: Temperature-dependent magnetic anisotropies in epitaxial Fe/CoO/MgO(001) system studied by the planar Hall effect
http://aip.metastore.ingenta.com/content/aip/journal/apl/98/26/10.1063/1.3606531
10.1063/1.3606531
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