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Isotopic enrichment in hexagonal boron nitride is shown to enhance the propagation properties of phonon polaritons, achieving a threefold enhancement in their lifetime.
Coherent 1D MoS2 channels, which are free of dangling bonds and dislocations, can be fabricated in monolayer WSe2, driven by dislocations at the interface of the two materials.
Although multivalent cation batteries based on magnesium, calcium or aluminium are technologically attractive, the metal anode still represents a challenge. It is now demonstrated that significant quantities of calcium can be plated and stripped at room temperature with low polarization.
Highly laminar graphene oxide flakes (10 to 20 μm in diameter) are fabricated. Reducing flake thickness to 10 nm enables water and organic solvent permeation, enabling the flakes to act as a highly effective organic solvent membrane.
A structurally chiral two-dimensional array of nanomagnets is shown to thermally relax its magnetization by rotation in a preferential direction, behaving as a magnetic ratchet.
Polarization-dependent photoluminescent mapping reveals that excitons — composite particles made of electron–hole pairs bound by the Coulomb force — exhibit the Hall effect, which originates from the large exciton Berry curvature.
Tissue mimics are of great interest in understanding diseases. Here, organoids were developed that resemble polycystic kidney disease cysts and it was demonstrated how material environment and adhesion can affect cystogenesis and disease progression.
Fast field-driven antiferromagnetic spin dynamics is realized in ferrimagnetic Gd23Fe67.4Co9.6 thin films at the angular momentum compensation point. In particular, at this point, the field-driven domain wall mobility is found to be enhanced.
Self-replication and exponential growth are essential in nature. Here, the authors design a system of DNA origami rafts that exponentially replicate and demonstrate sensitivity to environmental changes.
Irradiation with a strong terahertz electric-field pulse is found to induce a Mott transition in an organic molecular compound. The metallization is attributed to an impulsive dielectric breakdown.
Measurement of the nuclear polarization in GaAs/AlGaAs quantum dots through manipulation of the nuclear spin states with radiofrequency pulses reveals polarizations up to 80%.
Encapsulation of single- and double-wall carbon nanotubes in carbon nanocages, which may contain gadolinium or erbium, leads to a reduction of the thermal conductivity and an improved Seebeck coefficient.
Valley magnetization in single-layer MoS2 is demonstrated by breaking the three-fold rotational symmetry via uniaxial stress. The results are consistent with a theoretical model of valley magnetoelectricity driven by Berry curvature effects.
Liquid fragility is a basic characteristic of glasses and there is debate as to what controls it. X-ray scattering of several metallic liquids now suggests that the strength of the repulsive part of the interatomic potential is key.
PtSe2 and CuSe monolayers obtained by selenization of a metal substrate are shown to intrinsically form periodic patterns by varying the amount of Se atoms deposited. These patterns are used for the localized absorption of molecules and nanoclusters.