jinzhitong

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: 08 April 2024; doi:10.1038/s41563-024-01853-9

Ferroelectric phase stability is a pivotal challenge for fluorite-structure ferroelectrics. Using electron microscopy, a ferroelastically protected reversible polar-to-non-polar phase transition in ZrO2 is observed and the critical strain state to break the reversibility is measured.

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: 08 April 2024; doi:10.1038/s41563-024-01860-w

High-phase-purity and stable 1T′-transition metal dichalcogenide monolayers are grown on 4H-Au nanowires by a facile and rapid wet-chemical method, enabling ultrasensitive surface-enhanced Raman scattering detection.

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.

Nature, Published online: 10 April 2024; doi:10.1038/d41586-024-01006-7

An innovative solid-state lithiation strategy allows the exfoliation of layered transition-metal tellurides into nanosheets in an unprecedentedly short time, without sacrificing their quality. The observation of physical phenomena typically seen in highly crystalline TMT nanosheets opens the way to their use in applications such as batteries and micro-supercapacitors.

Nature, Published online: 10 April 2024; doi:10.1038/s41586-024-07360-w

Selenium alloyed tellurium oxide for amorphous p-channel transistors

Nature Physics, Published online: 04 April 2024; doi:10.1038/s41567-024-02465-5

The ferromagnet CrVI6 serves as a material platform to demonstrate the topological Kerr effect in two-dimensional magnets. This can be used to identify skyrmions by magneto-optical means.

Nature, Published online: 03 April 2024; doi:10.1038/s41586-024-07209-2

Fast and scalable synthesis of a variety of transition metal telluride nanosheets by solid lithiation and hydrolysis is demonstrated and several interesting quantum phenomena were observed, such as quantum oscillations and giant magnetoresistance.