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The anomalous Hall effect in the perpendicular Ta/CoFeB/MgO thin films
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View: Figures


Image of FIG. 1.
FIG. 1.

The representative curves of vs for annealed Ta(2.2)/CoFeB(1.04)/MgO() films (  = 300 °C) with (a) 0.66, (b) 0.88, and (c) 5.5 nm, denoted by the letters in the bottom panel. (d) MgO cap layer thickness dependence of the out-of-plane / (open squares) and (solid squares).

Image of FIG. 2.
FIG. 2.

The typical magnetic hysteresis loops for the perpendicular Ta(2.2)/CoFeB(1.04)/MgO(3.3) thin film measured at 5 K and 300 K, respectively. The inset shows the saturated magnetization (normalized to 5 K) as a function of temperature; the red solid line is the fitting result using Bloch law.

Image of FIG. 3.
FIG. 3.

The curves of / vs (a) and / vs (b) for annealed Ta(2.2)/CoFeB(1.04)/MgO(5) thin film. The inset in (a) shows the temperature dependence of the and in the temperature range of 5 to 300 K. The lines are guide to eyes. The black line in (b) is a linear fitting result by using Eq. (1) .

Image of FIG. 4.
FIG. 4.

The anomalous Hall conductivity as a function of the normalized saturated magnetization . The red line is a linear fitting result.


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752b84549af89a08dbdd7fdb8b9568b5 journal.articlezxybnytfddd
Scitation: The anomalous Hall effect in the perpendicular Ta/CoFeB/MgO thin films