Visible-Light Self-Powered Photodetector with High Sensitivity Based on the Type-II Heterostructure of CdPSe₃/MoS₂

ACS Applied Materials & Interfaces, Journal Year: 2024, Volume and Issue: 16(25), P. 32334 - 32343

Published: June 11, 2024

Transition metal thiophosphates (MTPs) are a group of emerging van der Waals materials with widely tunable band gaps. In the MTP family, CdPSe

Language: Английский

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Observation of anomalous Hall effect in proximity coupled Cr₂Ge₂Te₆/Graphene heterostructures

Nanoscale, Journal Year: 2025, Volume and Issue: unknown

Published: Jan. 1, 2025

In heterostructures of Cr 2 Ge Te 6 (CGT)/graphene, the anomalous Hall effect is clearly observed through experiments, which caused by spin polarization in graphene induced magnetic proximity effect.

Language: Английский

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Dispersive Dark Excitons in van der Waals Ferromagnet CrI3

Physical Review X, Journal Year: 2025, Volume and Issue: 15(1)

Published: Feb. 25, 2025

Spin-flip dark excitons are optical-dipole-forbidden quasiparticles with remarkable potential in optoelectronics, especially when they realized within cleavable van der Waals materials. Despite this potential, have not yet been definitively identified ferromagnetic Here, we report two a model material CrI3 using high-resolution resonant inelastic x-ray scattering and show that feature narrower linewidths compared to the bright previously reported material. These shown spin-flip character, disperse as function of momentum, change through transition temperature. Given versatility materials, these hold promise for new types magneto-optical functionality. Published by American Physical Society 2025

Language: Английский

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Nonreciprocal Phonons in PT -Symmetric Antiferromagnets

Physical Review Letters, Journal Year: 2025, Volume and Issue: 134(20)

Published: May 20, 2025

Language: Английский

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Two-Fold Enhancement of Curie Temperature in Monolayer CrI3 by High Pressure

Metals, Journal Year: 2025, Volume and Issue: 15(4), P. 398 - 398

Published: April 2, 2025

In recent years, the discovery of two-dimensional (2D) intrinsically ferromagnetic monolayer CrI3 has opened up promising avenues for advancement spintronic devices. Nevertheless, relatively low Curie temperature poses a significant challenge practical applications. Herein, we determine changes in superexchange interaction coupling caused under pressure by using first-principles calculations and Monte Carlo simulations. Based on coupling, effect applying high is investigated. With coefficient 2.0%, enhanced to 97.3 K, which nearly double that without pressure. addition, direction easy magnetization axis from out-of-plane in-plane one when 1.2%. Meanwhile, band gap can be transformed indirect direct Our work enriches process modulating magnetic electronic properties 2D materials.

Language: Английский

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Reconstruction of nontrivial magnetization textures from magnetic field images using neural networks

Physical Review Applied, Journal Year: 2025, Volume and Issue: 23(4)

Published: April 4, 2025

Language: Английский

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Kagomerization of transition metal monolayers induced by two-dimensional hexagonal boron nitride

Nature Communications, Journal Year: 2024, Volume and Issue: 15(1)

Published: June 6, 2024

Abstract The kagome lattice is an exciting solid state physics platform for the emergence of nontrivial quantum states driven by electronic correlations: topological effects, unconventional superconductivity, charge and spin density waves, unusual magnetic such as liquids. While lattices have been realized in complex multi-atomic bulk compounds, here we demonstrate from first-principles a process that dub kagomerization, which fabricate two-dimensional monolayers transition metals utilizing hexagonal boron nitride ( h -BN) overlayer. Surprisingly, -BN induces large rearrangement metal atoms supported on fcc(111) heavy-metal surface. This reconstruction found to be rather generic this type heterostructures has profound impact underlying properties, ultimately stabilizing various solitons skyrmions bimerons. Our findings call reconsideration merely passive capping layer, showing its potential not only reconstructing atomic structure material, e.g. through kagomerization films, but also enabling phases are highly sought next generation device technologies.

Language: Английский

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Nanocomposites of Three-Dimensional Graphene Nanofoams with Polymers—Fundamentals and Progressions

Polymer-Plastics Technology and Materials, Journal Year: 2024, Volume and Issue: unknown, P. 1 - 26

Published: Sept. 12, 2024

Language: Английский

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Ab initio study of highly tunable charge transfer in β−RuCl3 /graphene heterostructures

Physical Review Research, Journal Year: 2024, Volume and Issue: 6(4)

Published: Oct. 9, 2024

Heterostructures of graphene in proximity to magnetic insulators open the possibility investigate exotic states emerging from interplay magnetism, strain and charge transfer between layers. Recent reports on growth self-integrated atomic wires β−RuCl3 graphite suggest these materials as versatile candidates effects. Here we present detailed first-principles calculations electronic structure β−RuCl3/graphene heterostructures provide a comparison with work function analysis related honeycomb family members α−RuX3 (X = Cl,Br,I). We find that two layers leads hole-doped electron-doped RuX3 all cases, which is sensitively dependent distance Furthermore, effects due lattice mismatch control magnetization itself has strong effect transfer. Charge accumulation β−RuCl3 strongly drops away chain making such suitable for sharp interfacial junctions graphene-based devices. Published by American Physical Society 2024

Language: Английский

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Identifying Band Structure Changes of FePS₃ across the Antiferromagnetic Phase Transition

ACS Nano, Journal Year: 2024, Volume and Issue: 18(47), P. 32924 - 32931

Published: Nov. 12, 2024

Magnetic 2D materials enable interesting tuning options of magnetism. As an example, the van der Waals material FePS

Language: Английский

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