Kehui Wu
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View article: Real-space observation of a time-reversal invariant topological state in twisted bilayer InSe
Real-space observation of a time-reversal invariant topological state in twisted bilayer InSe Open
The moiré superlattice formed by van der Waals (vdW) stacking of two-dimensional (2D) monolayers with a twist angle can give rise to a variety of novel correlated physical phenomena. In this study, we propose that a 2D semiconductor compos…
View article: All-Electrical Self-Switching of van der Waals Chiral Antiferromagnet
All-Electrical Self-Switching of van der Waals Chiral Antiferromagnet Open
Antiferromagnets have garnered significant attention due to their negligible stray field and ultrafast magnetic dynamics, which are promising for high-density and ultrafast spintronic applications. Their dual functionality as both spin sou…
View article: Development of a 10.8-eV tabletop femtosecond laser with tunable polarization for high-resolution angle-resolved photoemission spectroscopy
Development of a 10.8-eV tabletop femtosecond laser with tunable polarization for high-resolution angle-resolved photoemission spectroscopy Open
The development of extreme ultraviolet sources is critical for advancing angle-resolved photoemission spectroscopy (ARPES), a powerful technique for probing the electronic structure of materials. Here, we report the construction of a table…
View article: What do we know about midwife-woman interactions during vaginal childbirth: a scoping review and thematic analysis
What do we know about midwife-woman interactions during vaginal childbirth: a scoping review and thematic analysis Open
The research protocol was preregistered on the Open Science Framework (Registration DOI: https://doi.org/10.17605/OSF.IO/R5WYQ ).
View article: Flat Bands and Temperature-Driven Phase Transition in Quasi-One-Dimensional Zigzag Chains
Flat Bands and Temperature-Driven Phase Transition in Quasi-One-Dimensional Zigzag Chains Open
Flat-band materials have garnered extensive attention due to their captivating properties associated with strong correlation effects. While flat bands have been discovered in several types of 2D materials, their existence in 1D systems rem…
View article: Orientation-selective spin-polarized edge states in monolayer NiI2
Orientation-selective spin-polarized edge states in monolayer NiI2 Open
Spin-polarized edge states in two-dimensional materials hold promise for spintronics and quantum computing applications. Constructing stable edge states by tailoring two-dimensional semiconductor materials with bulk-boundary correspondence…
View article: 1D Flat Bands in Phosphorene Nanoribbons with Pentagonal Nature
1D Flat Bands in Phosphorene Nanoribbons with Pentagonal Nature Open
Materials with flat bands can serve as a promising platform to investigate strongly interacting phenomena. However, experimental realization of ideal flat bands is mostly limited to artificial lattices or moiré systems. Here, a general way…
View article: Light-regulated soliton dynamics in liquid crystals
Light-regulated soliton dynamics in liquid crystals Open
Electrically powered solitons are particle-like field configurations in out-of-equilibrium nematics that have garnered significant interest. However, their random generation and lack of controllable motion have limited their application. H…
View article: Evidence for Two-dimensional Weyl Fermions in Air-Stable Monolayer PtTe$_{1.75}$
Evidence for Two-dimensional Weyl Fermions in Air-Stable Monolayer PtTe$_{1.75}$ Open
The Weyl semimetals represent a distinct category of topological materials wherein the low-energy excitations appear as the long-sought Weyl fermions. Exotic transport and optical properties are expected because of the chiral anomaly and l…
View article: Fission of quasi-static dissipative solitons in chiral nematics
Fission of quasi-static dissipative solitons in chiral nematics Open
Dissipative solitons in liquid crystals (LCs) are represented by three-dimensional solitary waves of director deformation called directrons. The only one exception on the quasi-static counterparts of directrons has ever been observed in ac…
View article: Lycopene alleviates Bisphenol a-induced lipid accumulation via activating the SIRT1/PGC-1α signaling in PK15 cells
Lycopene alleviates Bisphenol a-induced lipid accumulation via activating the SIRT1/PGC-1α signaling in PK15 cells Open
The present study sought to investigate the protective effect of Lycopene (LYC) on Bisphenol A (BPA)-induced lipid accumulation and elucidate the potential molecular mechanism. In vitro, the PK15 cells with or without LYC were exposed to B…
View article: Evidence for multiferroicity in single-layer CuCrSe2
Evidence for multiferroicity in single-layer CuCrSe2 Open
Multiferroic materials, which simultaneously exhibit ferroelectricity and magnetism, have attracted substantial attention due to their fascinating physical properties and potential technological applications. With the trends towards device…
View article: Direct and Inverse Spin Splitting Effects in Altermagnetic RuO<sub>2</sub>
Direct and Inverse Spin Splitting Effects in Altermagnetic RuO<sub>2</sub> Open
Recently, the altermagnetic materials with spin splitting effect (SSE), have drawn significant attention due to their potential to the flexible control of the spin polarization by the Néel vector. Here, the direct and inverse altermagnetic…
View article: Unraveling Enyne Bonding via Dehydrogenation–Hydrogenation Processes in On‐Surface Synthesis with Terminal Alkynes
Unraveling Enyne Bonding via Dehydrogenation–Hydrogenation Processes in On‐Surface Synthesis with Terminal Alkynes Open
On‐surface reactions of terminal alkynes in ultrahigh vacuum have attracted widespread attention due to their high technological promise. However, employing different precursors and substrate materials often intricate reaction schemes appe…
View article: Electrical tuning of branched flow of light
Electrical tuning of branched flow of light Open
Branched flows occur ubiquitously in various wave systems, when the propagating waves encounter weak correlated scattering potentials. Here we report the experimental realization of electrical tuning of the branched flow of light using a n…
View article: Electrical tuning of branched flow of light
Electrical tuning of branched flow of light Open
The measured optical intensity distributions for various electrical gate voltages and the extracted fidelity and statistical properties, etc.
View article: Leveraging ChatGPT for Effective Research Design and Data Analysis — An Example with Research on Short Video Addiction
Leveraging ChatGPT for Effective Research Design and Data Analysis — An Example with Research on Short Video Addiction Open
Artificial intelligence, particularly advanced models like ChatGPT, offers significant enhancements in data processing efficiency, decision-making velocity, and precision across various domains. This study explores the transformative poten…
View article: Estimating Wastewater Emissions and Environmental Levels of Typical Organic Contaminants Based on Regionalized Modelling
Estimating Wastewater Emissions and Environmental Levels of Typical Organic Contaminants Based on Regionalized Modelling Open
View article: Layer-dependent Raman spectroscopy of ultrathin <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML"><mml:mrow><mml:msub><mml:mi>Ta</mml:mi><mml:mn>2</mml:mn></mml:msub><mml:msub><mml:mi>Pd</mml:mi><mml:mn>3</mml:mn></mml:msub><mml:msub><mml:mi>Te</mml:mi><mml:mn>5</mml:mn></mml:msub></mml:mrow></mml:math>
Layer-dependent Raman spectroscopy of ultrathin Open
Two-dimensional topological insulators (2DTIs) or quantum spin Hall\ninsulators are attracting increasing attention due to their potential\napplications in next-generation spintronic devices. Despite their promising\nprospects, realizable …
View article: Unconventional band structure via combined molecular orbital and lattice symmetries in a surface-confined metallated graphdiyne sheet
Unconventional band structure via combined molecular orbital and lattice symmetries in a surface-confined metallated graphdiyne sheet Open
Graphyne (GY) and graphdiyne (GDY)-based materials represent an intriguing class of two-dimensional (2D) carbon-rich networks with tunable structures and properties surpassing those of graphene. However, the challenge of fabricating atomic…
View article: Atomic-scale manipulation of single-polaron in a two-dimensional semiconductor
Atomic-scale manipulation of single-polaron in a two-dimensional semiconductor Open
Polaron is a composite quasiparticle derived from an excess carrier trapped by local lattice distortion, and it has been studied extensively for decades both theoretically and experimentally. However, atomic-scale creation and manipulation…
View article: Realization of a two-dimensional checkerboard lattice in monolayer Cu$_2$N
Realization of a two-dimensional checkerboard lattice in monolayer Cu$_2$N Open
Two-dimensional checkerboard lattice, the simplest line-graph lattice, has been intensively studied as a toy model, while material design and synthesis remain elusive. Here, we report theoretical prediction and experimental realization of …
View article: Bound excitons and bandgap engineering in violet phosphorus
Bound excitons and bandgap engineering in violet phosphorus Open
View article: Emergence of ferroelectricity in a nonferroelectric monolayer
Emergence of ferroelectricity in a nonferroelectric monolayer Open
Ferroelectricity in ultrathin two-dimensional (2D) materials has attracted broad interest due to potential applications in nonvolatile memory, nanoelectronics and optoelectronics. However, ferroelectricity is barely explored in materials w…
View article: The Role of MMP-9 and MMP-9 Inhibition in Different Types of Thyroid Carcinoma
The Role of MMP-9 and MMP-9 Inhibition in Different Types of Thyroid Carcinoma Open
Matrix metalloproteinase-9 (MMP-9), one of the most investigated and studied biomarkers of the MMPs family, is a zinc-dependent proteolytic metalloenzyme whose primary function is degrading the extracellular matrix (ECM). It has been prove…
View article: Optimal maximum benefit model and prediction of carbon sequestration: A case study of the Greater Khingan Mountains
Optimal maximum benefit model and prediction of carbon sequestration: A case study of the Greater Khingan Mountains Open
In order to make better use of the value of forest carbon sequestration and other aspects, this paper reformulate the forest management plan including deforestation in addition to the current conventional forest management plan. Moreover, …
View article: Condensation and asymmetric amplification of chirality in achiral molecules adsorbed on an achiral surface
Condensation and asymmetric amplification of chirality in achiral molecules adsorbed on an achiral surface Open
The origin of homochirality in nature is an important but open question. Here, we demonstrate a simple organizational chiral system constructed by achiral carbon monoxide (CO) molecules adsorbed on an achiral Au(111) substrate. Combining s…
View article: Selective binding and periodic arrangement of magic boron clusters on monolayer borophene
Selective binding and periodic arrangement of magic boron clusters on monolayer borophene Open
The synthesis and characterization of small boron clusters with unique size and regular arrangement are crucial for boron chemistry and two-dimensional borophene materials. In this study, together with theoretical calculations, the joint m…
View article: Light‐Driven Folding Liquid Crystal Elastomer Catapult with Improved Morphing Velocity
Light‐Driven Folding Liquid Crystal Elastomer Catapult with Improved Morphing Velocity Open
As a typical behavior of releasing energy in a short time, catapulting is a way for organisms to adapt to complex and changeable environments, such as crossing terrain obstacles and spreading seeds. The essence of catapulting behavior is t…
View article: Trajectory engineering of directrons in liquid crystals<i>via</i>photoalignment
Trajectory engineering of directrons in liquid crystals<i>via</i>photoalignment Open
We present the trajectory control of directrons guided by the alignment fields created through polarization holography. The zigzag and fishhook-shaped trajectories of directrons have been achieved. The resolution for zigzag manipulation of…