Semiconductor technology is currently based on the manipulation of electronic charge;
however, electrons have additional degrees of freedom, such as spin and valley, that can be …

2D semiconductors have interesting physical and chemical attributes that have led them to
become one of the most intensely investigated semiconductor families in recent history …

Moiré superlattices formed by van der Waals materials can support a wide range of
electronic phases, including Mott insulators,,–, superconductors,,,,–and generalized Wigner …

Hexagonal boron nitride (hBN) is an emerging two-dimensional material for quantum
photonics owing to its large bandgap and hyperbolic properties. Here we report two …

Atomically thin semiconductors such as transition metal dichalcogenide (TMD) monolayers
exhibit a very strong Coulomb interaction, giving rise to a rich exciton landscape. This makes …

We present an accurate ab initio tight-binding Hamiltonian for the transition metal
dichalcogenides, MoS 2, MoSe 2, WS 2, WSe 2, with a minimal basis (the d orbitals for the …

The investigation of orbital angular momentum (OAM) of delocalised Bloch electrons has
advanced our understanding of magnetic, transport, and optical phenomena in crystals …

Excitons and trions (or exciton polarons) in transition metal dichalcogenides (TMDs) are
known to decay predominantly through intravalley transitions. Electron-hole recombination …

Strain engineering has emerged as a powerful tool to modify the optical and electronic
properties of two-dimensional crystals. Here we perform a systematic study of strained …

Metasurfaces enable flat optical elements by leveraging optical resonances in metallic or
dielectric nanoparticles to obtain accurate control over the amplitude and phase of the …