Fig. 1: Thickness characterization and layer-dependent transport properties. | Nature Communications

Fig. 1: Thickness characterization and layer-dependent transport properties.

From: Néel-type skyrmion in WTe2/Fe3GeTe2 van der Waals heterostructure

Fig. 1

a Schematic graph for WTe2 on Fe3GeTe2. Scale bar: 2 Å. b Microscopic image of exfoliated WTe2 flakes. Scale bar: 10 μm. c Cross-sectional profile of the WTe2 flakes along the blue line shown in (b). d Microscopic image of exfoliated Fe3GeTe2 thin films. Scale bar: 10 μm. e Cross-sectional profile of the Fe3GeTe2 flakes along the black line shown in (d). Temperature dependence of Hall resistivity for f 60L, g 30L, h 7L, and i 4L Fe3GeTe2 flakes showing that the Curie temperature decreases as the thickness of Fe3GeTe2 decreases. Insets show the devices for the measurements separately and the scale bar in the inset: 10 μm. Resistivity is shifted for clarity. The vertical scale bars are 10 Ω for (f–h) and 100 Ω for (i).

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