Results 101 to 110 of about 551,694 (368)

Pressure driven Weyl-topological insulator phase transition in Weyl semimetal SrSi_2

open access: yesCondensed Matter Physics, 2023
Using DFT-based first-principles calculations, we demonstrate the tuning of the electronic structure of Weyl semimetal SrSi_2 via external uniaxial strain.
Aditya Shende   +3 more
doaj   +1 more source

Takagi Topological Insulator on the Honeycomb Lattice

open access: yesFrontiers in Physics, 2022
Recently, real topological phases protected by PT symmetry have been actively investigated. In two dimensions, the corresponding topological invariant is the Stiefel-Whitney number.
Qing Liu   +4 more
doaj   +1 more source

Non-equilibrium spin density and spin-orbit torque in three dimensional topological insulators - antiferromagnet heterostructure

open access: yes, 2019
We study the behavior of non-equilibrium spin density and spin-orbit torque in a topological insulator - antiferromagnet heterostructure. Unlike ferromagnetic heterostructures where Dirac cone is gapped due to time-reversal symmetry breaking, here the ...
Ghosh, Sumit, Manchon, Aurelien
core   +1 more source

Algebraic and Geometric Mean Density of States in Topological Anderson Insulators [PDF]

open access: yes, 2013
Algebraic and geometric mean density of states in disordered systems may reveal properties of electronic localization. In order to understand the topological phases with disorder in two dimensions, we present the calculated density of states for ...
Shen, Shun-Qing, Zhang, Yan-Yang
core   +2 more sources

Magnetically controllable topological quantum phase transitions in the antiferromagnetic topological insulator MnBi2Te4 [PDF]

open access: yesPhysical review B, 2019
The recent discovery of the antiferromagnetic (AFM) topological insulator (TI) ${\mathrm{MnBi}}_{2}{\mathrm{Te}}_{4}$ has triggered great research efforts on exploring novel magnetic topological physics.
Jiaheng Li   +5 more
semanticscholar   +1 more source

Metal‐Organic Framework Embedded Electrospun Fibrous Membranes‐Based Hybrid Nanogenerators with Hierarchical Modified Polyamide Films for Mechanical Energy Harvesting and IoT Applications

open access: yesAdvanced Functional Materials, EarlyView.
Hybrid nanogenerator (HNG) based on a zinc‐metal‐organic framework‐loaded fibrous film integrated with a hierarchically modified nylon film having micropatterns and micropores is fabricated via an electrospinning technique, and its electrical properties are optimized. The HNGs are incorporated into wearable garments and automobile systems for practical
Sontyana Adonijah Graham   +6 more
wiley   +1 more source

Band gap of a topological insulator nanotube

open access: yesMoldavian Journal of the Physical Sciences, 2011
We study the electronic structure of a topological insulator Bi2Te3 cylindrical nanotube. The energy spectrum was calculated in the framework of the kp theory near the Γ point of the surface Brilloiun zone.
Bejenari, Igor, Canţer, Valeriu
doaj  

Topological Spin Texture in a Quantum Anomalous Hall Insulator [PDF]

open access: yes, 2014
The quantum anomalous Hall (QAH) effect has been recently discovered in experiment using thin-film topological insulator with ferromagnetic ordering and strong spin-orbit coupling.
Liu, Jie, Liu, Xiong-Jun, Wu, Jiansheng
core   +3 more sources

Robust temporal pumping in a magneto-mechanical topological insulator [PDF]

open access: yesNature Communications, 2019
The transport of energy through 1-dimensional (1D) waveguiding channels can be affected by sub-wavelength disorder, resulting in undesirable localization and backscattering phenomena.
I. Grinberg   +6 more
semanticscholar   +1 more source

Positive‐Tone Nanolithography of Antimony Trisulfide with Femtosecond Laser Wet‐Etching

open access: yesAdvanced Functional Materials, EarlyView.
A butyldithiocarbamic acid (BDCA) etchant is used to fabricate various micro‐ and nanoscale structures on amorphous antimony trisulfide (a‐Sb2S3) thin film via femtosecond laser etching. Numerical analysis and experimental results elucidate the patterning mechanism on gold (reflective) and quartz (transmissive) substrates.
Abhrodeep Dey   +12 more
wiley   +1 more source

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