Results 11 to 20 of about 622,533 (280)

Understanding the thermal properties of amorphous solids using machine-learning-based interatomic potentials [PDF]

open access: yes, 2018
Understanding the thermal properties of disordered systems is of fundamental importance for condensed matter physics - and it is of great relevance for practical applications as well.
Csányi , Gábor   +3 more
core   +1 more source

Differences in thermal expansion and motion ability for herringbone and face-to-face π-stacked solids

open access: yesIUCrJ, 2022
A series of aromatic organic molecules functionalized with different halogen atoms (I/ Br), motion-capable groups (olefin, azo or imine) and molecular length were designed and synthesized.
Xiaodan Ding   +3 more
doaj   +1 more source

Coordination environment tuning of nickel sites by oxyanions to optimize methanol electro-oxidation activity

open access: yesNature Communications, 2022
Coordination environments around metal sites are important in electrocatalysis. Here, Ni metalloid oxidation produces oxyanion doped amorphous Ni-oxyhydroxides where substitution with phosphorus is found to boost methanol electrooxidation activity.
Shanlin Li   +12 more
doaj   +1 more source

Maximizing completeness in single-crystal high-pressure diffraction experiments: phase transitions in 2°AP

open access: yesIUCrJ, 2021
Sufficiently high completeness of diffraction data is necessary to correctly determine the space group, observe solid-state structural transformations or investigate charge density distribution under pressure.
D. Tchoń, A. Makal
doaj   +1 more source

Growing timescales and lengthscales characterizing vibrations of amorphous solids [PDF]

open access: yes, 2016
Low-temperature properties of crystalline solids can be understood using harmonic perturbations around a perfect lattice, as in Debye's theory. Low-temperature properties of amorphous solids, however, strongly depart from such descriptions, displaying ...
Berthier, Ludovic   +5 more
core   +5 more sources

Crystal structure of (2Z,5Z)-3-(4-methoxyphenyl)-2-[(4-methoxyphenyl)imino]-5-[(E)-3-(2-nitrophenyl)allylidene]-1,3-thiazolidin-4-one

open access: yesActa Crystallographica Section E: Crystallographic Communications, 2016
In the title compound, C26H21N3O5S, the thiazole ring is nearly planar with a maximum deviation of 0.017 (2) Å, and is twisted with respect to the three benzene rings, making dihedral angles of 25.52 (12), 85.77 (12) and 81.85 (13)°. In the crystal, weak
Rachida Rahmani   +5 more
doaj   +1 more source

Microstructure and Failure Processes of Reactor Pressure Vessel Austenitic Cladding

open access: yesMetals, 2021
This paper is dedicated to an experimental program focused on the evaluation of microstructure and failure mechanisms of WWER 440 type nuclear reactor pressure vessel cladding made from Sv 08Kh19N10G2B stainless steel.
Jan Štefan   +4 more
doaj   +1 more source

On Pressure Gradients and Rapid Migration of Solids in an Inhomogeneous Solar Nebula [PDF]

open access: yes, 2002
We study the motions of small solids, ranging from micron-sized dust grains to 100-m objects, in the vicinity of a local density enhancement of an isothermal gaseous solar nebula.
Boss, Alan P., Haghighipour, Nader
core   +3 more sources

Charge distribution guided by grain crystallographic orientations in polycrystalline battery materials

open access: yesNature Communications, 2020
The authors here report on the influence of grain orientation on the charge distribution in polycrystalline materials for batteries. The quantitative characterization provides mechanistic insight into the way the grain orientation can be engineered to ...
Zhengrui Xu   +15 more
doaj   +1 more source

Resonant photon tunneling enhancement of the radiative heat transfer [PDF]

open access: yes, 2004
We study the dependence of the heat transfer between two semi-infinite solids on the dielectric properties of the bodies. We show that the heat transfer at short separation between the solids may increase by many order of magnitude when the surfaces are ...
Persson, B. N. J., Volokitin, A. I.
core   +2 more sources

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