Fig. 2: Experimental setup and STM/STS data of an 18∘ twisted SLG-on-WSe2 heterostructure. | Nature Communications

Fig. 2: Experimental setup and STM/STS data of an 18∘ twisted SLG-on-WSe2 heterostructure.

From: Determining spin-orbit coupling in graphene by quasiparticle interference imaging

Fig. 2

a Schematic view of a twisted SLG on WSe2 assembled onto a SiO2/Si substrate, with gold contact and STM tip. b Optical microscopy image of an actual device. c 20 × 20 nm2 topographic STM image (V = 20 mV, I = 30 pA; Inset: 2 × 2 nm2 magnification) and d corresponding Fourier transform showing the SLG and WSe2 lattices, and the moiré peaks. e dI/dV(V) spectrum measured on the bare SLG surface. The gap around the Fermi level is from phonon-assisted inelastic tunneling and the shallow dip near −197 meV (grey bar) is the Dirac point.

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