Results 11 to 20 of about 283,659 (304)

Effect of 3d-doping on the electronic structure of BaFe2As2 [PDF]

open access: yes, 2012
The electronic structure of BaFe2As2 doped with Co, Ni, and Cu has been studied by a variety of experimental and theoretical methods, but a clear picture of the dopant 3d states has not yet emerged.
  +21 more
core   +4 more sources

Intercalation Technology for Preparing a Mica–Organic Hybrid Solid Lubricant and Spectroscopic Evaluation of Its Lubrication Mechanism

open access: yesTribology Online, 2019
The lubrication behavior of mica–alkyl ammonium cation hybrid solid lubricants fabricated via an intercalation reaction was evaluated by reciprocating sliding tests, and the lubrication mechanism was investigated from the viewpoint of interlayer adhesion
Kenichiro Oshita   +2 more
doaj   +1 more source

Efecto del tratamiento de sellado en el comportamiento frente a corrosión de la aleación anodizada de aluminio-litio AA2099

open access: yesRevista de Metalurgia, 2020
El comportamiento frente a corrosión de la aleación de aluminio AA2099 anodizado en solución de H2SO4, aplicando dos densidades de corriente diferentes, 0,19 o 1,0 A·cm−2, con dos tratamientos de sellado diferentes en H2O y en Na2Cr2O7 (6% peso) a 95 °C,
Pedro Samaniego-Gámez   +9 more
doaj   +1 more source

Low temperature atomic layer deposition of cobalt using dicobalt hexacarbonyl-1-heptyne as precursor

open access: yesBeilstein Journal of Nanotechnology, 2023
In this work, we present the development of an atomic layer deposition (ALD) process for metallic cobalt. The process operates at low temperatures using dicobalt hexacarbonyl-1-heptyne [Co2(CO)6HC≡CC5H11] and hydrogen plasma.
Mathias Franz   +5 more
doaj   +1 more source

Study of interface asymmetry in InAs–GaSb heterojunctions [PDF]

open access: yes, 1995
We present reflection high energy electron diffraction, secondary ion mass spectroscopy, scanning tunneling microscopy and x‐ray photoelectron spectroscopy studies of the abruptness of InAs–GaSb interfaces.
Collins, D. A.   +4 more
core   +1 more source

Demonstration of chemistry at a point through restructuring and catalytic activation at anchored nanoparticles

open access: yesNature Communications, 2017
Metal nanoparticles prepared by exsolution at the surface of perovskite oxides are key species in catalysis and energy fields. Here, the authors develop a chemistry at a point concept by tracking individual nanoparticles with excellent activity and ...
Dragos Neagu   +10 more
doaj   +1 more source

The MRO-accompanied modes of Re-implantation into SiO2-host matrix: XPS and DFT based scenarios [PDF]

open access: yes, 2017
The following scenarios of Re-embedding into SiO2-host by pulsed Re-implantation were derived and discussed after XPS-and-DFT electronic structure qualification: (i) low Re-impurity concentration mode -> the formation of combined substitutional and ...
Boukhvalov, D. W.   +6 more
core   +1 more source

Effects of Residual Gas on Tribochemical Reactions of SUJ2 Steel in Vacuum and in Argon Gas Atmosphere

open access: yesTribology Online, 2009
To analyze the mechanisms of tribochemical reactions occurring between atmospheric gases and materials induced by friction, the authors have developed a friction test system with integrated XPS.
Hiroki Mano   +6 more
doaj   +1 more source

The Structure and Chemical Composition of the Cr and Fe Pyrolytic Coatings on the MWCNTs’ Surface According to NEXAFS and XPS Spectroscopy

open access: yesNanomaterials, 2020
The paper is devoted to the structure and properties of the composite material based on multi-walled carbon nanotubes (MWCNTs) covered with pyrolytic iron and chromium.
Danil Sivkov   +11 more
doaj   +1 more source

XPS insights: Asymmetric peak shapes in XPS

open access: yesSurface and Interface Analysis, 2023
The misinterpretation of peak asymmetry as higher oxidation states in x‐ray photoelectron spectroscopy (XPS) is regretfully all too common. This XPS Insight note introduces the theory of peak asymmetry in x‐ray photoelectron spectra and such asymmetry is discussed for a range of different ...
openaire   +1 more source

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