The representative curves of R xy vs H for annealed Ta(2.2)/CoFeB(1.04)/MgO(t) films (T a = 300 °C) with t MgO (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 M/M S (open squares) and H C (solid squares).
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 M S (normalized to 5 K) as a function of temperature; the red solid line is the fitting result using Bloch law.
The curves of ρ AH/ρxx vs ρxx (a) and RS /ρxx vs ρxx (b) for annealed Ta(2.2)/CoFeB(1.04)/MgO(5) thin film. The inset in (a) shows the temperature dependence of the ρ AH and ρxx 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) .
The anomalous Hall conductivity σ AH as a function of the normalized saturated magnetization M S. The red line is a linear fitting result.
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