jinzhitong

Nature Materials, Published online: 03 May 2024; doi:10.1038/s41563-024-01872-6

Strong bulk van der Waals materials can be created from water-mediated densification of two-dimensional nanosheets by near-room-temperature moulding, establishing a pathway for the energy-efficient fabrication of a wide range of bulk van der Waals materials and even composites for various applications.

Nature Communications, Published online: 27 April 2024; doi:10.1038/s41467-024-47821-4

A major challenge for spin-based information technologies is the generation of  spin polarization in otherwise nonmagnetic materials. Here, Arnoldi et al. demonstrate how ultrafast laser excitations can be used to generate spin polarization in a fullerene/tungsten diselenide heterostructure.

Nature Communications, Published online: 01 May 2024; doi:10.1038/s41467-024-47820-5

Magnetic tunnel junctions consist of two magnetic layers, separated by a thin insulator. The simplicity belies the industrial importance: magnetic tunnel junctions have a very wide variety of applications in contemporary society. Here, Fu et al present a magnetic tunnel junction composed of single van der Waals magnetic insulator, CrI3, exhibiting remarkably low power consumption.

Nature Communications, Published online: 04 May 2024; doi:10.1038/s41467-024-48264-7

The authors realize composite optimization in dielectric tunable materials by simultaneously achieving low electric field, large tunability, and low loss through ion substitution design in ferroelectric tunable materials.

Nature Chemistry, Published online: 03 May 2024; doi:10.1038/s41557-024-01527-8

Two-dimensional covalent organic frameworks (2D COFs) enable the construction of bespoke functional materials, but designing dynamic 2D COFs is challenging. Now it has been shown that perylene-diimide-based COFs can open and close their pores upon uptake or removal of guests, while fully retaining their crystalline long-range order. Moreover, the variable COF geometry enables stimuli-responsive optoelectronic properties.

Nature, Published online: 01 May 2024; doi:10.1038/s41586-024-07286-3

Centimetre-sized single-crystal rhombohedral boron nitride layers are achieved through bevel-edge epitaxy, and the resulting material exhibits robust, homogeneous and switchable ferroelectricity with a high Curie temperature.

Author(s): B. Yang, Qing Ji, F. Z. Huang, Jiacong Li, Y. Z. Tian, B. Xue, Ruxian Zhu, Hui Wu, Hanyue Yang, Y. B. Yang, Shaolong Tang, H. B. Zhao, Y. Cao, J. Du, B. G. Wang, Chunfeng Zhang, and D. Wu

We report the picosecond spin current generation from the interface between a heavy metal and a vicinal antiferromagnet insulator Cr2O3 by laser pulses at room temperature and zero magnetic field. It is converted into a detectable terahertz emission in the heavy metal via the inverse spin Hall effec…

[Phys. Rev. Lett. 132, 176703] Published Thu Apr 25, 2024

Nature Electronics, Published online: 24 April 2024; doi:10.1038/s41928-024-01158-4

A method for integrating polycrystalline molybdenum disulfide using processes in a 200 mm fab facility can create transistors with high robustness and performance comparable with single-crystalline devices.

Nature Physics, Published online: 22 April 2024; doi:10.1038/s41567-024-02476-2

Manipulation of the quantum-metric structure to produce topological phenomena has rarely been studied. Now, flexible control of the quantum-metric structure is demonstrated in a topological chiral antiferromagnet at room temperature.

Nature Materials, Published online: 16 April 2024; doi:10.1038/s41563-024-01862-8

Ion exchange is a powerful method to access metastable materials for energy storage, but identifying lithium and sodium interchange in layered oxides remains challenging. Using such model materials, vacancy level and corresponding lithium preference are shown to be crucial for ion exchange pathway accessibility.

Nature Materials, Published online: 23 April 2024; doi:10.1038/s41563-024-01866-4

Combining resonant inelastic X-ray scattering and photoluminescence spectroscopy, an elementary excitation in hexagonal-boron-nitride-based single-photon emitters has been demonstrated, giving rise to multiple regular harmonics that can explain the wide frequency range of these emitters.

Nature Materials, Published online: 24 April 2024; doi:10.1038/s41563-024-01858-4

By combining nano-spot angle-resolved photoemission spectroscopy and atomic force microscopy, the authors resolve the fine electronic structure of the flat band and remote bands of twisted bilayer graphene as the twist angle varies, revealing a spectral weight transfer between remote bands that is attributed to lattice relaxations.

Nature Communications, Published online: 22 April 2024; doi:10.1038/s41467-024-46397-3

The most successful commercial implementations of neuromorphic computing circuits are limited to digital-CMOS-circuit based approaches to date. Along this line, Pal et al. improve the energy efficiency by two orders of magnitude using two-dimensional layered material-based tunnel-field-effect transistors.

Nature Communications, Published online: 23 April 2024; doi:10.1038/s41467-024-47688-5

The authors characterize the phonon modes at the FeSe/SrTiO3 interface with atomically resolved electron energy loss spectroscopy and correlate them with accurate atomic structure in an electron microscope. They find several phonon modes highly localized at the interface, one of which engages in strong interactions with the electrons in FeSe.

Nature Communications, Published online: 25 April 2024; doi:10.1038/s41467-024-47903-3

vdW assembly of low-dimensional materials has proven the capability of creating structures with on-demand properties. Here, the authors report on the structural collapse of CNTs in conjunction with a metal-semiconductor junction induced by the VdW encapsulation.

Nature, Published online: 24 April 2024; doi:10.1038/s41586-024-07156-y

We develop an optical method that can set and read the state of electrons in the valley polarization of bulk transition metal dichalcogenide semiconductors, with potential utility as digital storage at quantum coherent timescales and application in quantum computing.

Nature, Published online: 24 April 2024; doi:10.1038/s41586-024-07271-w

We show that domain walls in minimally twisted bilayer graphene support exceptionally robust proximity superconductivity in the quantum Hall regime.

Nature Synthesis, Published online: 18 April 2024; doi:10.1038/s44160-024-00519-3

Monolayer gold could exhibit properties of benefit to various applications, but has been challenging to synthesize. Now, the exfoliation of two-dimensional single-atom-thick gold layers — termed goldene — is achieved through wet-chemically etching away Ti3C2 from Ti3AuC2, a nanolaminated MAX-phase. Goldene shows lattice contraction and an increase in the gold 4f binding energy compared with the bulk.

Author(s): Cunyuan Jiang, Matteo Baggioli, and Qing-Dong Jiang

Twisted bilayer graphene (TBG) is a recently discovered two-dimensional superlattice structure which exhibits strongly correlated quantum many-body physics, including strange metallic behavior and unconventional superconductivity. Most of TBG exotic properties are connected to the emergence of a pai…

[Phys. Rev. Lett. 132, 166901] Published Thu Apr 18, 2024

Nature Electronics, Published online: 16 April 2024; doi:10.1038/s41928-024-01162-8

Searching for MXenes

Proceedings of the National Academy of Sciences, Volume 121, Issue 17, April 2024.

Nature Nanotechnology, Published online: 19 April 2024; doi:10.1038/s41565-024-01650-0

Plasmonic tunnel junctions integrated with a monolayer semiconductor are found to emit photons with energies exceeding the input electrical potential. This peculiar phenomenon is ascribed to being triggered by inelastic electron tunnelling dipoles inducing optically forbidden transitions in the carrier injection electrode.

Nature Materials, Published online: 15 April 2024; doi:10.1038/s41563-024-01854-8

The authors report a modulation of the magnon spin current by electric polarization reversal.

Nature Communications, Published online: 17 April 2024; doi:10.1038/s41467-024-47610-z

Here, the authors fabricate a metasurface with nanometre-sized plasmonic hotspots that interact coherently with WS2 excitons, achieving ultrastrong exciton-plasmon coupling.

Nature Communications, Published online: 20 April 2024; doi:10.1038/s41467-024-47090-1

In addition to its low-field superconducting state, UTe2 features a re-entrant superconducting state when high magnetic fields are applied at a particular range of angles. Here, the authors demonstrate that the high-field re-entrant superconducting state survives even when the low-field superconducting state is destroyed by disorder.

Nature, Published online: 15 April 2024; doi:10.1038/s41586-024-07244-z

We introduce strong tailored light-wave-driven time-reversal symmetry breaking in monolayer hexagonal boron nitride, realizing a sub-laser-cycle controllable analogue of the topological model of Haldane and inducing non-resonant valley polarization.

Nature, Published online: 18 April 2024; doi:10.1038/d41586-024-01118-0

Sheets of gold might find use as catalysts, or in light-sensing devices.

Nature Materials, Published online: 11 April 2024; doi:10.1038/s41563-024-01856-6

The authors report coexisting ferromagnetism, polar distortion and metallicity in quasi-two-dimensional Ca3Co3O8, providing a platform to exploit magnetoelectric coupling in a metallic system.

Nature Communications, Published online: 11 April 2024; doi:10.1038/s41467-024-47507-x

Surface condensation is predetermined and is typically adjusted by chemical or topographical surface modification. Here, the authors report on a strategy to control the surface condensation behavior by adjusting molecular conformations in self-assembled monolayers.

Nature Communications, Published online: 11 April 2024; doi:10.1038/s41467-024-47342-0

Bernal-stacked bilayer graphene (BLG) has been extensively studied due to its tunable band gap and emerging electronic properties, but its low-energy band structure remains debated. Here, the authors report magnetotransport measurements of Bernal BLG, showing evidence of four Dirac cones and electrically induced topological transitions.