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Black phosphorus is an atomically thin material that exhibits excellent properties for electronics applications, but these degrade in atmospheric conditions. Here, the authors demonstrate the fabrication of stable, ultra-clean and high-mobility black phosphorus sandwiched between the layers of boron nitride.

A structure of monolayer and bilayer graphene with a small twist between them shows correlated insulating states that can be tuned by changing the twist angle or applying an electric field.

Few-layer transition metal dichalcogenides exhibit strong spin-valley entanglement and unconventional quantum Hall states, however their study has been limited by electron mobility. Here, the authors explore how quantum transport varies between even- and odd-layered systems of high mobility.

High-quality rhombohedral graphite films are found to offer an alternative to twisted bilayer graphene as a platform for studying correlated physics in carbon materials.

The authors demonstrate that ferroelectric polarizations in parallel-stacked twisted WSe₂ can imprint their moiré potential onto a remote bilayer graphene, providing a comprehensive strategy for engineering band structures.

Monolayer graphene, with its highly centrosymmetric hexagonal lattice, is typically not considered ferroelectric. Here, the authors observe ferroelectricity in monolayer graphene by introducing asymmetric moiré superlattices, where polarization arises from electron-hole dipoles.

Rhombohedral multilayer graphene has emerged as an exciting solid-state platform for studying correlated electron physics. Here, the authors demonstrate field-tunable layer-polarized ferromagnetism and isolated surface flat bands engineered with a moiré potential.

Barrier-free metal-semiconductor interfaces are crucial to improve the performance of 2D electronic devices. Here, the authors report a strategy to induce local bonding distortion in 2D transition metal dichalcogenides via soft oxygen plasma treatments, leading to reduced contact resistance and improved transport properties.

The electronic states in three-dimensional crystals such as graphite can be tuned by a superlattice potential occurring at the interface with crystallographically aligned hexagonal boron nitride.

The mechanism that drives the metal to insulator transition in the two-dimensional material molybdenum disulphide is unknown. Here, the authors identify a percolation-type transition by studying the transport and capacitance properties of a metal-insulator-MoS₂heterostructure.

Marginal twisting of 2D semiconductor crystals enables the emergence of room temperature interfacial ferroelectricity.

Plasmons confined in field effect transistors were long envisioned for resonant detection of light at THz frequencies, however realization of such photodetectors has proven challenging. Here, the authors fabricate antenna-coupled graphene transistors which exhibit resonant photoresponse to incident radiation and use them to study plasmons in graphene and its moiré superlattices.

Electrons hopping in two-dimensional honeycomb lattices possess a valley degree of freedom. Here, the authors observe room-temperature valley Hall transport without any extrinsic symmetry breaking in the non-centrosymmetric monolayer and trilayer MoS₂ by purely electronic means, whereas no valley signal is detected for centrosymmetric bilayer MoS₂.