Results 81 to 90 of about 263,380 (266)

Robust quantum spin Hall state and quantum anomalous Hall state in graphenelike BC3 with adatoms

open access: yesNew Journal of Physics, 2018
Two-dimensional (2D) topological insulators (TIs) and Chern insulators (CIs) promise quantum spin Hall (QSH) and quantum anomalous Hall (QAH) states without dissipation.
Yinchang Zhao   +7 more
doaj   +1 more source

Correlated Metal LaNiO3 as a p‐Type Transparent Conductor

open access: yesAdvanced Functional Materials, EarlyView.
p‐type transparent conducting oxides are needed to enable superstrate solar cell geometries with n‐type absorbers. The p‐type correlated metal LaNiO3 combines high optical transmission with low electrical resistivity and is compatible with a range of scalable deposition processes.
Shivang Beniwal   +8 more
wiley   +1 more source

Influence of fixed charges and trapped electrons on free electron mobility at 4H-SiC(0001)/SiO2 interfaces with gate oxides annealed in NO or POCl3

open access: yesApplied Physics Express
Free electron mobility ( μ _free ) in 4H-SiC(0001) MOSFETs with gate oxides annealed in NO or POCl _3 was calculated in a wide range of effective normal field ( E _eff ) from 0.02 to 2 MV cm ^−1 , taking account of scattering by fixed charges and trapped
Koji Ito   +4 more
doaj   +1 more source

Spin Hall effect of linearly polarized light passed through a metasurface

open access: yesКомпьютерная оптика
The density of the longitudinal component of the spin angular momentum (SAM) vector is calculated for a paraxial vector Gaussian beam with a periodic one-dimensional modulation.
A.G. Nalimov, A.A. Kovalev
doaj   +1 more source

A Novel Modified Petroresin Particle (MPRP) With Enhanced Oil–Water Selectivity for Cold Production in Heavy Oil Reservoirs

open access: yesAdvanced Functional Materials, EarlyView.
A novel oil–water selective conformance control agent, MPRP, is prepared via hydrophilic grafting and mechanical granulation. MPRP uniformly disperses in water, cohesively expands upon aging, and readily dissolves in the oil phase. During conformance control, it selectively aggregates in water channeling pathways to form effective plugs without ...
Guang Zhao   +6 more
wiley   +1 more source

Analytic results of the excited electronic states at υ = 1/3 and the Laughlin-Jain microscopic wave function approaches

open access: yesCondensed Matter Physics, 2019
In this work we studied the properties of a two-dimensional electronic gas subjected to a strong magnetic field and cooled at a low temperature. We reported exact analytical results of energies at the ground state. The results are for systems up to N_e =
M.A. Ammar
doaj   +1 more source

Enhanced Tantalum Superconducting Resonator Performance via All‐Surface Organic Monolayer Passivation

open access: yesAdvanced Functional Materials, EarlyView.
The internal quality factor of tantalum superconducting resonators is significantly increased by ∼140% in the low photon regime by passivating their surfaces with a high‐quality alkene self‐assembled monolayer. Our methodology promises to enhance the performance of superconducting quantum circuits.
Harsh Gupta   +6 more
wiley   +1 more source

Extraordinary n‐type Tellurium‐Free Thermoelectric Performance of Y‐Doped BiSe via Synergistic Effect of Vacancies and Band Engineering

open access: yesAdvanced Functional Materials, EarlyView.
Yttrium doping in Sb‐alloyed BiSe synergistically induces Bi vacancies and flattens conduction bands, simultaneously slashing lattice thermal conductivity by 50% and boosting the power factor. The optimized n‐type Bi0.64Sb0.3Y0.06Se delivers a peak zT of 0.91 at 393 K (average zT 0.76, 300–523 K) and an 8‐pair module with 4.6% conversion efficiency ...
Wenhao Xie   +16 more
wiley   +1 more source

Heat transfer characteristics in a non-Newtonian (Williamson) hybrid nanofluid with Hall and convective boundary effects

open access: yesHigh Temperature Materials and Processes
Heat transfer (HT) technology is rapidly increasing due to the petition for well-organized heating systems and cooling systems in the requisite posited by chemical, automotive, and aerospace industries.
Alharbi Latifah Falah   +7 more
doaj   +1 more source

Direct Channel Implantation of B and BF2 Ions for Functional Control of Oxygen Vacancies in Oxide Semiconductor Thin Film Transistors

open access: yesAdvanced Functional Materials, EarlyView.
Direct channel implantation of B and BF2 ions was employed to fabricate amorphous IGZO TFTs with improved electrical and stability properties. B and BF2 implantation modulate oxygen vacancies within the IGZO channel. The field‐effect mobility of ion‐implanted IGZO TFTs was enhanced as compared to pristine IGZO TFTs.
Beom Soo Kim   +9 more
wiley   +1 more source

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