Fig. 3: Experimental determination of the DM interaction. | npj Computational Materials

Fig. 3: Experimental determination of the DM interaction.

From: Determination of the Dzyaloshinskii-Moriya interaction using pattern recognition and machine learning

Fig. 3

a Schematic illustration of the film structure, an optical microscope image of a representative device and a definition of the coordinate axes. b Switching field \(H_{\mathrm{c}}\) plotted as a function of \(H_x\) for Hall bars made from heterostructures with different Ta seed layer thickness (d). The vertical arrows indicate \(H_{{\mathrm{DM}}}\) obtained by fitting the data with model calculations24. The solid lines show the fitting results. c, d d dependence of the effective perpendicular magnetic anisotropy energy (\(K_{{\mathrm{eff}}}\)) (c) and the DM exchange constant (D) (d).

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