jinzhitong

Author(s): Toshiaki Kanai and Wei Guo

In a 2D turbulent fluid containing pointlike vortices, Lars Onsager predicted that adding energy to the fluid can lead to the formation of persistent clusters of like-signed vortices, i.e., Onsager vortex (OV) clusters. In the evolution of 2D superfluid turbulence in a uniform disk-shaped Bose-Einst...

[Phys. Rev. Lett. 127, 095301] Published Tue Aug 24, 2021

Nature Materials, Published online: 06 September 2021; doi:10.1038/s41563-021-01074-4

A two-dimensional hole gas with high carrier density is confined at the interface between a solution-processed, single-crystalline organic semiconducting film and the electric double layer formed by an ion gel on top of the film.

Nature Materials, Published online: 06 September 2021; doi:10.1038/s41563-021-01078-0

Metallic behaviour from a two-dimensional hole gas has been observed in solution-processed organic crystals, giving hope for this state of matter to be used in next-generation large-area soft electronics.

Nature, Published online: 08 September 2021; doi:10.1038/s41586-021-03581-5

This Review discusses the state of the art of interface optics—including refractive optics, meta-optics and moiré engineering—for the control of van der Waals polaritons.

Nature Materials, Published online: 26 August 2021; doi:10.1038/s41563-021-01072-6

Layered clays are of interest for membranes and many other applications but their ion-exchange dynamics remain unexplored in atomically thin materials. Here, using electron microscopy, it is found that the ion diffusion for few-layer two-dimensional clays approaches that of free water and that superlattice cation islands can form in twisted and restacked materials.

Nature Materials, Published online: 26 August 2021; doi:10.1038/s41563-021-01092-2

Using atomic-resolution electron microscopy to observe ion-exchange processes in atomically thin layered and restacked clays, substantially larger ion diffusion constants and moiré effects on ion dynamics are seen.

Nature, Published online: 01 September 2021; doi:10.1038/s41586-021-03938-w

Half and quarter metals in rhombohedral trilayer graphene

Nature, Published online: 01 September 2021; doi:10.1038/s41586-021-03926-0

Superconductivity in rhombohedral trilayer graphene

Interactions of electronic and vibrational degrees of freedom are essential for understanding excited-states relaxation pathways of molecular systems at interfaces and surfaces. Here, we present the development of interface-specific two-dimensional electronic–vibrational sum frequency generation (2D-EVSFG) spectroscopy for electronic–vibrational couplings for excited states at interfaces and surfaces. We demonstrate this 2D-EVSFG...

Nature Nanotechnology, Published online: 23 August 2021; doi:10.1038/s41565-021-00955-8

Measuring the gate capacitance serves as a probe of the correlated states in MoSe2/WS2 moiré superlattices, which can be further controlled via sample–gate coupling.

Nature Materials, Published online: 19 August 2021; doi:10.1038/s41563-021-01062-8

The Weyl fermions in NdAlSi mediate a helical incommensurate spin density wave, providing a rare example of Weyl-mediated collective phenomena.

Nature Materials, Published online: 25 August 2021; doi:10.1038/s41563-021-01059-3

Centimetre-scale few-layer black phosphorus films have been grown on a mica substrate by pulsed laser deposition. The high crystalline quality and homogeneity of these films are promising for device applications.

Nature Materials, Published online: 26 August 2021; doi:10.1038/s41563-021-01084-2

A borophene polymorph with two covalently bonded boron monolayers was synthesized, expanding the physical properties of borophene and filling the gap between monolayer borophene and icosahedron-based bulk boron.

Nature, Published online: 25 August 2021; doi:10.1038/s41586-021-03753-3

Restricting the initial growth temperatures used for chemical vapour deposition of graphene on metal foils produces optimum conditions for growing large areas of fold-free, single-crystal graphene.