Fig. 2 | Nature Communications

Fig. 2

From: Exchange coupling torque in ferrimagnetic Co/Gd bilayer maximized near angular momentum compensation temperature

Fig. 2

Field-dependent CIDWM at various temperatures near TM and TA. a Experimental results of the dependence of DW velocity on Hx for j = 0.82 × 108 A cm−2. Dashed lines are linear fits to the data which provide the slope ξ. b Analytical solutions of the dependence of DW velocity on Hx. Dashed lines are linear fits to the analytical data which provide ξ. c Measured values of ξ versus T and (d) calculated values of ξ versus mGd/mCo. The data correspond to 10 ns long voltage pulses. Error bars obtained from linear fits to data in a. e Sketch of DW structure in the presence of small Hx and large j. Torque on both magnetic moments τi is maximized at TA, where angle between magnetic moments maximizes

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