Articles with "edge states" as a keyword



Synthetic Kramers Pair in Phononic Elastic Plates and Helical Edge States on a Dislocation Interface.

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Published in 2021 at "Advanced materials"

DOI: 10.1002/adma.202005160

Abstract: In conventional theories, topological band properties are intrinsic characteristics of the bulk material and do not depend on the choice of the reference frame. In this scenario, the principle of bulk-edge correspondence can be used… read more here.

Keywords: synthetic kramers; edge; edge states; helical edge ... See more keywords

Constructing Ultra‐Shallow Near‐Edge States for Efficient and Stable Perovskite Solar Cells

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Published in 2024 at "Advanced Materials"

DOI: 10.1002/adma.202309487

Abstract: Electronic band structure engineering of metal‐halide perovskites (MHP) lies at the core of fundamental materials research and photovoltaic applications. However, reconfiguring the band structures in MHP for optimized electronic properties remains challenging. This article reports… read more here.

Keywords: ultra shallow; constructing ultra; edge; edge states ... See more keywords

Edge States in 2D A2PbBr4 Hybrid Perovskites Enabled by Local Structural Reorganization

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Published in 2025 at "Advanced Materials"

DOI: 10.1002/adma.202419606

Abstract: The edge states (ES) in two‐dimensional (2D) hybrid lead halide perovskites (LHPs) exhibit distinct electronic characteristics, including lower energy and longer lifetimes compared to the interior states (IS). Though the ES of these 2D LHPs… read more here.

Keywords: edge; structural reorganization; edge states; local structural ... See more keywords

Designable Layer Edge States in Quasi‐2D Perovskites Induced by Femtosecond Pulse Laser

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Published in 2022 at "Advanced Science"

DOI: 10.1002/advs.202201046

Abstract: The low‐energy layer edge states (LESs) from quasi 2D hybrid perovskite single crystals have shown great potential because of their nontrivial photoelectrical properties. However, the underlying formation mechanism of the LESs still remains controversial. Also,… read more here.

Keywords: single crystals; states quasi; edge states; layer edge ... See more keywords
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Exploration of channel width scaling and edge states in transition metal dichalcogenides

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Published in 2018 at "Nano Research"

DOI: 10.1007/s12274-017-1794-x

Abstract: We explore the impact of edge states in three types of transition metal dichalcogenides (TMDs), namely metallic Td-phase WTe2 and semiconducting 2H-phase MoTe2 and MoS2, by patterning thin flakes into ribbons with varying channel widths.… read more here.

Keywords: transition metal; edge; edge states; channel ... See more keywords
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Spectroscopic signatures of edge states in hexagonal boron nitride

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Published in 2019 at "Nano Research"

DOI: 10.1007/s12274-019-2417-5

Abstract: We use Z-contrast imaging and atomically resolved electron energy-loss spectroscopy on an aberration-corrected scanning transmission electron microscope to investigate the local electronic states of boron atoms at different edge structures in monolayer and bilayer h-BN.… read more here.

Keywords: states hexagonal; spectroscopic signatures; edge; edge states ... See more keywords
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Highly confined topological edge states from two simple triangular lattices with reversed materials

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Published in 2021 at "Optics Communications"

DOI: 10.1016/j.optcom.2020.126451

Abstract: Abstract In order to perform a simple design of topological edge states, we construct two-dimensional triangular lattices with reversed scatterers and matrix materials. As the p and d orbits in the two lattices are reversed,… read more here.

Keywords: edge states; highly confined; lattices reversed; topological edge ... See more keywords

Thermally tunable topological edge states for in‐plane bulk waves in solid phononic crystals

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Published in 2019 at "Ultrasonics"

DOI: 10.1016/j.ultras.2018.09.006

Abstract: HighlightsA thermal field is first utilized for tuning topological band gaps and edge states.We realize the actively frequency tunability of topologically protected edge states.The active frequency controllability has special advantage in practical applications. ABSTRACT The… read more here.

Keywords: bulk waves; frequency; plane bulk; edge ... See more keywords

Chaotic and time-periodic edge states in square duct flow

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Published in 2025 at "Journal of Fluid Mechanics"

DOI: 10.1017/jfm.2025.10706

Abstract: Abstract We analyse the long-time dynamics of trajectories within the stability boundary between laminar and turbulent square duct flow. If not constrained to a symmetric subspace, the edge trajectories exhibit a chaotic dynamics characterised by… read more here.

Keywords: time; edge; edge states; duct flow ... See more keywords
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Near-Field Imaging and Time-Domain Dynamics of Photonic Topological Edge States in Plasmonic Nanochains.

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Published in 2021 at "Nano letters"

DOI: 10.1021/acs.nanolett.1c03324

Abstract: Time-domain dynamic evolution properties of topological states play an important role in both fundamental physics study and practical applications of topological photonics. However, owing to the absence of available ultrafast time-domain dynamic characterization methods, studies… read more here.

Keywords: topological edge; time; time domain; edge states ... See more keywords

Quantum Spin Hall Edge States and Interlayer Coupling in Twisted Bilayer WTe2.

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Published in 2022 at "Nano letters"

DOI: 10.1021/acs.nanolett.2c00432

Abstract: The quantum spin Hall (QSH) effect, characterized by topologically protected spin-polarized edge states, was recently demonstrated in monolayers of the transition metal dichalcogenide (TMD) WTe2. However, the robustness of this topological protection remains largely unexplored… read more here.

Keywords: quantum spin; spin hall; edge states; twisted bilayer ... See more keywords