Beyond Graphene: Low-Symmetry and Anisotropic 2D Materials

Focus on 2D materials beyond graphene.

THz applications of 2D materials: Graphene and beyond

Monolayer graphene, successfully isolated in 2004, is the firstmember of the class ofmaterials called twodimensional (2D) materials. Since then, 2D materials such as hexagonal boron nitride (h-BN), transition metal dichalcogenides (TMDs), silicene and phosphorene have been extensively investigated owing to their extraordinary mechanical, chemical, and physical properties. Furthermore, some of t...

The Electrical Transport Study Of Graphene Nanoribbons And 2d Materials Beyond Graphene

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Anisotropic 2D Materials for Tunable Hyperbolic Plasmonics.

Motivated by the recent emergence of a new class of anisotropic 2D materials, we examine their electromagnetic modes and demonstrate that a broad class of the materials can host highly directional hyperbolic plasmons. Their propagation direction can be manipulated on the spot by gate doping, enabling hyperbolic beam reflection, refraction, and bending. The realization of these natural 2D hyperb...

2D and 1D Semiconductors Beyond Graphene and their Unexpected Properties*

FIG.1. Calculated electron density difference ∆ρ=ρtot(bulk)−Σρtot(monolayers) representing the charge redistribution caused by assembling the bulk structure from isolated monolayers. (a) Diffusion Monte Carlo (DMC) isosurfaces bounding regions of excess electron density (dark brown) and electron deficiency (light brown), with respective values ±6.5×10 e/Å. (b) <∆ρ(z)> for DMC and selected DFT f...