Fig. 3: Bias-dependent STM images of the CT-MoTe2 phase.
From: Electronic Janus lattice and kagome-like bands in coloring-triangular MoTe2 monolayers
a, b Large-scale STM topography (a) and current (b) image of the post-annealed MoTe2 monolayer. White dashed lines indicate the area of the formed CT-MoTe2 phase. c Magnified STM current image of the CT-MoTe2 area. d Structural model of the CT-MoTe2 phase. e–h Bias-dependent STM topography images of the CT-MoTe2 phase, showing an apparent electronic Janus lattice. Generally, the primitive atomic-lattice (red, larger) and the Te pseudo-sublattice (blue, smaller) are apparently observed within and out of the energy-range of (−1V, +1 V), the lattice vectors of which were denotes using the red and blue arrows, respectively. i–l Simulated STM images of the CT-MoTe2 phase. The red/blue and orange triangles highlight the MTTDs and MTB triangular segments of CT-MoTe2. The TeMTTD-R and TeMTTD-B atoms are marked by the red and blue circles in (d–l), respectively. Scanning parameters are (a, b) V = −2.3 V, I = −100pA; (c) V = −2.0 V, I = −100pA.
