Figure 1 | Scientific Reports

Figure 1

From: Optical polarization and intervalley scattering in single layers of MoS2 and MoSe2

Figure 1

Structure of Monolayer MoS2.

(a) Crystal structure of a single-layer transition-metal dichalcogenide. A central layer of transition metal atoms is sandwiched by layers of chalcogens. (b) Brillouin zone for a reduced dimensional hexagonal lattice. Some relevant high symmetry points are indicated. (c) Schematic of the single-particle band structure at K and K’ valleys. The arrows denote the A (solid line) and B (dashed line) excitons. Each valley can only be excited with a specific helicity, σ+ or σ−.

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