Results 71 to 80 of about 67,781 (329)

Improved half-metallic ferromagnetism of transition-metal pnictides and chalcogenides calculated with a modified Becke-Johnson exchange potential

open access: yes, 2010
We use a density-functional-theory (DFT) approach with a modified Becke-Johnson exchange plus local density approximation (LDA) correlation potential (mBJLDA) [semi-local, orbital-independent, producing accurate semiconductor gaps. see F.
Guo, San-Dong, Liu, Bang-Gui
core   +1 more source

Large linear magnetoresistivity in strongly inhomogeneous planar and layered systems [PDF]

open access: yes, 2005
Explicit expressions for magnetoresistance $R$ of planar and layered strongly inhomogeneous two-phase systems are obtained, using exact dual transformation, connecting effective conductivities of in-plane isotropic two-phase systems with and without ...
Abrikosov   +25 more
core   +3 more sources

Actinide Chalcogenide Compounds

open access: yes, 2010
This chapter describes the preparation, structures, and physical properties of the known binary, ternary, and quaternary actinide chalcogenide compounds. In discussing structures we rely almost exclusively on X-ray or neutron diffraction results from single crystals rather than from powders.
Manos, Emmanouil   +2 more
openaire   +2 more sources

Wafer‐Scale Synthesis of Mithrene and its Application in UV Photodetectors

open access: yesAdvanced Functional Materials, EarlyView.
A controlled tarnishing step on the silver surface precedes the solid‐vapor‐phase chemical transformation into silver phenylselenolate thin films. The approach yields crystals exceeding 1 µm with improved in‐plane orientation. Integration on graphene phototransistors demonstrates high photoresponsivity, positioning mithrene as a promising material for ...
Maryam Mohammadi   +8 more
wiley   +1 more source

Biosynthesis of Nanomaterials by Shewanella Species for Application in Lithium Ion Batteries

open access: yesFrontiers in Microbiology, 2018
Nanomaterials exhibit extraordinary properties based on their size, shape, chemical composition, and crystal structure. Owing to their unique properties nanomaterials are preferred over their bulk counterparts for a number of applications.
Tae-Yang Kim   +3 more
doaj   +1 more source

Elucidating active sites and decomposition mechanisms for oxythiomolybdate clusters (Mo2O2Sx, x = 6;8) as catalyzers for hydrogen evolution reactions

open access: yesElectrochemical Science Advances, 2022
We investigated the decomposition mechanism of Mo3S13 (chalcogenides) and Mo2O2Sx(x = 6,8) through Density Functional Theory, in particular Mo2O2Sx. Oxythiomolybdates are more stable than chalcogenides, and decompose through cathodic reactions, while ...
Samuel Bertolini, Timo Jacob
doaj   +1 more source

Three‐dimensional Antimony Sulfide Based Flat Optics

open access: yesAdvanced Functional Materials, EarlyView.
This work presents the development of a grayscale electron beam lithography (g‐EBL) method for fabricating antimony trisulfide (Sb2S3) nanostructures with customizable 3D profiles. The refractive index of g‐EBL patterned Sb2S3 is determined based on the synergy of genetic algorithm and transfer matrix method.
Wei Wang   +18 more
wiley   +1 more source

Recent advances in zinc-based chalcogenides for potassium ion batteries

open access: yesResources Chemicals and Materials
Lithium-ion batteries (LIBs) gradually occupied the energy storage market due to their long cycling life, high working voltage, as well as energy density.
Xijun Xu   +6 more
doaj   +1 more source

Advances on Sb2Se3 Solar Cells Fabricated by Physical Vapor Deposition Techniques

open access: yesSolar, 2023
Sb2Se3, as an earth-abundant and low-toxic material, has emerged as one of the most interesting absorbers for clean renewable power generation technologies.
Roberto Jakomin   +3 more
doaj   +1 more source

Fractional power-law behavior and its origin in iron-chalcogenide and ruthenate superconductors: Insights from first-principles calculations

open access: yes, 2012
We perform realistic first-principles calculations of iron chalcogenides and ruthenate based materials to identify experimental signatures of Hund's coupling induced correlations in these systems.
Haule, K., Kotliar, G., Yin, Z. P.
core   +1 more source

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