Synthetic Kramers Pair in Phononic Elastic Plates and Helical Edge States on a Dislocation Interface.
Sign Up to like & getrecommendations! 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
Designable Layer Edge States in Quasi‐2D Perovskites Induced by Femtosecond Pulse Laser
Sign Up to like & getrecommendations! 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
Exploration of channel width scaling and edge states in transition metal dichalcogenides
Sign Up to like & getrecommendations! 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
Spectroscopic signatures of edge states in hexagonal boron nitride
Sign Up to like & getrecommendations! 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
Highly confined topological edge states from two simple triangular lattices with reversed materials
Sign Up to like & getrecommendations! 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
Sign Up to like & getrecommendations! 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
Near-Field Imaging and Time-Domain Dynamics of Photonic Topological Edge States in Plasmonic Nanochains.
Sign Up to like & getrecommendations! 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.
Sign Up to like & getrecommendations! 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
Uncovering Topological Edge States in Twisted Bilayer Graphene.
Sign Up to like & getrecommendations! Published in 2022 at "Nano letters"
DOI: 10.1021/acs.nanolett.2c01481
Abstract: Twisted bilayer graphene (t-BLG) has recently been introduced as a rich physical platform displaying flat electronic bands, strongly correlated states, and unconventional superconductivity. Studies have hinted at an unusual Z2 topology of the moiré Dirac… read more here.
Keywords: topology; bilayer graphene; edge states; twisted bilayer ... See more keywords
Edge States at Nematic Domain Walls in FeSe Films.
Sign Up to like & getrecommendations! Published in 2018 at "Nano letters"
DOI: 10.1021/acs.nanolett.8b03282
Abstract: Quantum spin Hall (QSH) effect is an intriguing phenomenon arising from the helical edge states in two-dimensional topological insulators. We use molecular beam epitaxy (MBE) to prepare FeSe films with atomically sharp nematic domain boundaries,… read more here.
Keywords: nematic domain; edge states; fese films; states nematic ... See more keywords
Mapping 1D Confined Electromagnetic Edge States in 2D Monolayer Semiconducting MoS2 Using 4D-STEM.
Sign Up to like & getrecommendations! Published in 2022 at "ACS nano"
DOI: 10.1021/acsnano.2c01170
Abstract: Four-dimensional (4D) scanning transmission electron microscopy is used to study the electric fields at the edges of 2D semiconducting monolayer MoS2. Sub-nanometer 1D features in the 2D electric field maps are observed at the outermost… read more here.
Keywords: electric field; electromagnetic edge; microscopy; edge states ... See more keywords