Results 11 to 20 of about 2,161,180 (295)

Amorphous-Nanocrystalline Composites Prepared by High-Pressure Torsion

open access: yesMetals, 2020
This article presents systematic studies of the preparation method and the specific features of the changes in the structure and properties of amorphous-nanocrystalline composites formed from melt-quenched ribbons of iron- and cobalt-based amorphous ...
Inga Permyakova, Alex Glezer
doaj   +1 more source

A Green Chemical Approach for the Synthesis of Gold Nanoparticles: Characterization and Mechanistic Aspect [PDF]

open access: yes, 2009
This IRCSET-EMPOWER (Irish Research Council for Science, Engineering and Technology Postdoctoral Research Grant) project aims to improve current methodology for the synthesis of metal nanoparticles (NPs).
Das, Sujoy K., Marsili, Enrico
core   +1 more source

Improved Log(gf) Values for Lines of Ti I and Abundance Determinations in the Photospheres of the Sun and Metal-Poor Star HD 84937 (Accurate Transition Probabilities for Ti I) [PDF]

open access: yes, 2013
New atomic transition probability measurements for 948 lines of Ti I are reported. Branching fractions from Fourier transform spectra and from spectra recorded using a 3 m echelle spectrometer are combined with published radiative lifetimes from laser ...
Cowan, John J.   +4 more
core   +1 more source

Interlayer epitaxy of wafer-scale high-quality uniform AB-stacked bilayer graphene films on liquid Pt3Si/solid Pt

open access: yesNature Communications, 2019
Specific stacking sequence of graphene can enable observation of unusual properties however it has been difficult to obtain this over wider areas. Here, the authors report wafer-scale growth of 100% AB-stacked bilayer graphene films by CVD on liquid ...
Wei Ma   +9 more
doaj   +1 more source

Research of structural entropy of sheet aluminium alloys depending on annealing temperature

open access: yesMATEC Web of Conferences, 2018
Sheet blanks’ structure uniformity determines their ability to sheet stamping. Level of entropy may represent the characteristic of structural uniformity.
Nosova Ekaterina   +2 more
doaj   +1 more source

Absence of critical thickness for polar skyrmions with breaking the Kittel’s law

open access: yesNature Communications, 2023
The period of polar domain (d) in ferroics was commonly believed to scale with corresponding film thicknesses (h), following the classical Kittel’s law of d ∝ $$\sqrt{h}$$ h .
Feng-Hui Gong   +7 more
doaj   +1 more source

Orbital-dependent effects of electron correlations in microscopic models for iron-based superconductors [PDF]

open access: yes, 2013
The bad metal behavior in the normal state of the iron-based superconductors suggests an intimate connection between the superconductivity and a proximity to a Mott transition.
Si, Qimiao, Yu, Rong, Zhu, Jian-Xin
core   +1 more source

Unipolar resistive switching in metal oxide/organic semiconductor non-volatile memories as a critical phenomenon [PDF]

open access: yes, 2015
Diodes incorporating a bilayer of an organic semiconductor and a wide bandgap metal oxide can show unipolar, non-volatile memory behavior after electroforming.
Baxter R. J.   +5 more
core   +4 more sources

Tailoring optical emission of silicon-vacancy centers in two-dimensional diamond nanosheets via a two-step oxidation approach

open access: yesFunctional Diamond, 2023
Incorporating two-dimensional (2D) diamond nanosheets with fluorescent color centers exhibits great potential in the application of quantum sensing.
Bing Yang   +8 more
doaj   +1 more source

Dependence of Solidification for Bi2Te3−xSex Alloys on Their Liquid States

open access: yesScientific Reports, 2017
The resistivity versus temperature (ρ-T) behaviours of liquid n-type Bi2Te3−x Se x (x = 0.3, 0.45 and 0.6) alloys are explored up to 1050 °C. A clear hump is observed on all ρ-T curves of the three studied Bi2Te3−x Se x melts during the heating process ...
Yuan Yu   +7 more
doaj   +1 more source

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