Extended Data Fig. 1: Bilayer WTe2 device. | Nature

Extended Data Fig. 1: Bilayer WTe2 device.

From: Ferroelectric switching of a two-dimensional metal

Extended Data Fig. 1

a, Essential steps in device fabrication. b, Optical image of device B4. The red dashed line outlines the bilayer flake. Scale bar, 5 μm. c, AFM topography image of the central region in b. Scale bar, 2 μm. d, Line cut along the white dashed line in c. The step height matches the expected bilayer thickness, about 1.4 nm.

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