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Itinerant magnetism in rhombohedral multilayer graphene shows a large excess entropy from magnetic fluctuations above its critical temperature—typically only associated with local moments—which implies the decoupling of charge and isospin degrees of freedom, and results in the isospin Pomeranchuk effect.

In analogy with quantum Hall systems, it may be possible to find non-abelian anyons in the higher bands of Chern insulators. Now, the phase diagram of the second moiré band of twisted MoTe₂ is explored, laying the groundwork for such investigations.

Far-field mid-infrared spectroscopy reveals both the electroluminescence of hyperbolic phonon polaritons of hexagonal boron nitride excited by strongly biased graphene, and the associated radiative energy transfer through the material.

Unconventional unidirectional magnetoresistance observed in the heterostructures of a topological semimetal (WTe₂) and a magnetic insulator (Cr₂Ge₂Te₆) enables the electrical read-out of the magnetic states of a perpendicularly polarized magnet through longitudinal resistance measurements.

Pair density modulation, an unusual superconducting state whose superconducting gap is modulated by the wavelength corresponding to the lattice periodicity, is described and observed in exfoliated thin flakes of the iron-based superconductor FeTe_0.55Se_0.45.

Metal–organic chemical vapour deposition enables the wafer-scale growth of hexagonal boron nitride with an AA stacking sequence that was previously considered thermodynamically unfavourable.

It may be possible to find non-Abelian electronic states in the higher bands of flat-band materials. Now a detailed transport study of the second moiré band of twisted bilayer MoTe₂ maps out several topological and magnetic states.

Strong magnetic interfacial coupling in van der Waals heterostructures provides a new platform for discovering novel physics and effects. Here, the authors report the formation of skyrmion lattice in the WTe₂/Fe₃GeTe₂ van der Waals heterostructure and a Dzyaloshinskii–Moriya interaction with a large energy density of 1.0 mJm⁻².

Direct visualization of moiré superlattices in van der Waals heterostructures is a needed diagnostic tool for the study of periodicity-induced electronic and optical phenomena. Here, the authors demonstrate that the moiré pattern in twisted bilayer graphene can be indirectly imaged by imaging the phonon polariton interference on the top hexagonal boron nitride encapsulation layer.

The existence of interlayer excitons with strong oscillator strength in bilayer MoS₂ enables their electrical manipulation up to room temperature.

Spontaneous symmetry breaking of flat bands in twisted graphene systems may lead to anomalous Hall effect with a precursor state which has not been observed. Here, the authors probe this precursor state by observing bulk valley current and large nonlocal voltage several micrometers away from the charge current path in twisted double bilayer graphene.

Here, the authors image twisted bilayer graphene using scanning microwave imaging microscopy, revealing structures with sizes down to 1 nm. They show that is possible by using spontaneously forming nanoscale water menisci that concentrates the microwave fields in small regions.

In this study, authors examine Staphylococcus aureus adaptability in hospitals, highlighting how a lineage evolved to reversibly suppress Agr, enhancing antibiotic resistance and colonization.

Plasmonic modulators have many possible applications in optical-frequency devices. Here the authors report a 2D semiconductor nonlinear plasmonic modulator enabled through strong interaction between the surface plasmon polaritons and excitons in a monolayer semiconductor integrated on top of a metallic waveguide.

Scanning tunnelling microscopy shows that electrons in twisted bilayer graphene are strongly correlated for a wide range of density. In particular, a correlated regime appears near charge neutrality and theory suggests nematic ordering.

In monolayer transition-metal dichalcogenides, lack of inversion symmetry results in spin-split valence and conduction bands, but the small conduction band splitting is hard to probe experimentally. Here, the authors extract a sub-band spacing energy of 0.8 meV in the conduction band of monolayer MoS₂ via quantum transport measurements.

The emission of light from correlated excitonic complexes has been recently observed in atomically thin transition metal dichalcogenides. Here, the authors report electroluminescence generated by a pulsed gate voltage from excitons, trions, and biexcitons in monolayer WSe₂ and WS₂ encapsulated with hBN.

Here, the authors experimentally demonstrate a platform for tunable polariton refractive and meta-optics based on hexagonal boron nitride and phase change Ge₃Sb₂Te₆. This combination has the advantage of the long-lived phonon-polariton with switchable refractive index of the phase change material.

High-order correlated states in atomically thin transition metal dichalcogenides may be facilitated by long-lived optically dark excitons. Here, the authors report experimentally the emergence of neutral and charged biexciton species at low light intensities in encapsulated WSe₂ monolayers.

Multi-exciton states may emerge in atomically thin transition metal dichalcogenides as a result of strong many-body interactions. Here, the authors report experimental evidence of four- and five-particle biexciton complexes in monolayer WSe₂ and their electrical control.

Owing to strong Coulomb interactions, atomically thin transition metal dichalcogenides host strongly bound excitonic complexes. Here, the authors report charge-neutral biexciton and negatively charged trion-exciton complexes in hBN encapsulated monolayer WSe₂ by employing low-temperature photoluminescence spectroscopy.

Natural killer T cells (NKT cells) are thought to originate at the double-positive stage of thymopoiesis. Taniguchi and colleagues find that a subset of NKT cells also appear earlier, at the double-negative stage, and that these give rise to liver-resident NKT cells with highly potent effector function.

Double-gate transistors of bilayer layered antiferromagnet CrPS₄ give full control of the spin polarization of the conduction band and of the magnetization of the accumulated electrons.

Here, the authors fabricate hybrid van der Waals heterostructures based on 2D tessellations of DNA origami thin films, graphene and boron nitride, showing that the DNA films can induce periodic superlattices at the interface and modulate the electronic properties of the samples.

Direct imaging and characterization of propagating plasmons in high-quality graphene, encapsulated between two films of hexagonal boron nitride, has now been achieved together with the observation of very low plasmon damping.

Supramolecular heterostructures have been formed by the sequential deposition of two molecular layers with different symmetries and lattice constants — one consisting of carboxylic acid, the other of cyanuric acid and melamine — on a hexagonal boron nitride substrate. Characterization by atomic force microscopy and molecular dynamics simulations shows epitaxial arrangements between the layers.

A superconductor–graphene junction is shown to exhibit the quantum Hall effect, with the chemical potential of the edge state displaying a sign reversal. Such a system could provide a platform for observing isolated non-Abelian anyonic zero modes.

Quadrupolar excitons — a superposition of two dipolar excitons with anti-aligned dipole moments — are of great interest for applications in quantum simulations and for the investigation of many-body physics. Here, the authors demonstrate the emergence of quadrupolar excitons in natural MoSe2 homobilayers, whose energy shifts quadratically in electric field.

The authors image non-equilibrium exciton phase-transition dynamics in moiré superlattices, revealing how strong long-range dipolar repulsion freezes the motion of the Mott insulator over a timescale of tens of nanoseconds.

Γ and K valleys in twisted transition metal dichalcogenides have emerged as highly tunable knobs for accessing different correlated electronic states in solid-state devices. Here, the authors tune a Mott-Hubbard state to a charge-transfer insulator state in twisted double-bilayer WSe₂.

Negatively charged nitrogen vacancy centres in diamond crystals are promising for achieving high-sensitivity quantum sensors. Here, a long dephasing time with high uniformity is achieved in a millimetre-scale area along the {111} plane using ¹²C enriched high-pressure high-temperature diamond crystals.

High-resolution STM/STS visualizes the fractionalization of flat moiré bands into discrete Hofstadter subbands in moiré graphene near the predicted second magic angle, and experimentally establishes several fundamental properties of the fractal Hofstadter energy spectrum.

The authors demonstrate a graphene/CrSBr heterostructure exhibiting anisotropic surface plasmon polariton (SPP) propagation in the mid-infrared and terahertz range. Charge transfer at the interface directs SPPs along the quasi-1D chains that compose each CrSBr layer, with propagation lengths varying by an order of magnitude between the two in-plane crystallographic axes.

A new method ‘hypotaxy’ enables wafer-scale, single-crystal transition metal dichalcogenides growth directly on crystalline, lattice-mismatched and amorphous substrates.

Twisted transition metal dichalcogenide bilayers exhibit several emerging physical properties, but the connection to the underlying band structure singularities remains difficult to determine experimentally. Here, the authors characterize the influence of an electrically tunable van Hove singularity in twisted bilayer WSe₂ on its ferromagnetic and topological phases.

Double-sided epitaxy of van der Waals materials through atomic membranes is demonstrated, enabling electrons to resonantly tunnel between aligned topological insulator surfaces with the conservation of energy, momentum and spin helicity.

We report signatures of a generalized version of the anomalous Hall crystal in twisted bilayer–trilayer graphene, whose formation is driven by the moiré potential.

Sliding ferroelectricity with finite conductance can yield ferroelectric hysteresis with concomitant Coulomb screening in monolayer graphene containing van der Waals heterostructures of various compositions.

Point defects in 2D semiconductors hold potential as single photon emitters (SPEs), but their controlled fabrication and microscopic understanding remain a challenge. Here, the authors report the synthesis of dilute Nb-doped monolayer WS₂, showing that Nb impurities behave as SPEs with well-defined emission energies.

Phase transitions in charge density wave materials could be useful for memory and electronic device applications. Here, the authors correlate the temperature-driven transitions in the electrical and optical properties of H-TaS₂/1T-TaS₂ heterostructures to the number of endotaxial metallic H-TaS₂ monolayers.

Our understanding of the phase diagram of twisted graphene structures is incomplete. Now, twisted trilayer graphene is examined using a technique that locally images quantum oscillations and shows that a nematic semimetal is favoured at low density.

This study explores fractional quantum Hall physics in large-angle twisted bilayer graphene, revealing a 1/3 fractional quantum Hall state driven by strong interlayer Coulomb interactions. Monte Carlo simulations confirm unique topological ground states and transitions with applied displacement fields.