Results 191 to 200 of about 1,259,122 (370)

Inelastic neutron scattering applied to the investigation of collective excitations in topologically disordered matter

open access: yesCondensed Matter Physics, 2008
Inelastic neutron scattering techniques are introduced here as one of the most important experimental techniques in the investigation of collective excitations in fluids (liquids and compressed gases) and amorphous solids.
J.-B.Suck
doaj   +1 more source

A Facile Route to Large‐Area 2D Pt

open access: yesAdvanced Science, EarlyView.
This work demonstrates a simple route to form continuous 2D platinum (Pt) films only up to 0.3 nm thick using a gallium oxide (GaOx) adhesion layer. The oxygen‐deficient GaOx reverses wetting thermodynamics, enabling scalable sputtering of transparent, conductive, and robust 2D Pt.
Minsik Kong   +5 more
wiley   +1 more source

Tailoring π--d$\pi {\text{--}}d$ Magnetic Interactions in Metallated Porphyrin Nanotapes

open access: yesAngewandte Chemie, EarlyView.
To understand how π$\pi$‐radicals and d$d$‐electrons interact within molecular nanostructures, we have studied metallated porphyrin nanotapes synthesized on gold surfaces. We reveal element‐specific results: with Fe centers the ferromagnetic π$\pi$‐d$d$ exchange dominates, while with Co centers the metal–metal exchange overpowers the π$\pi$‐d$d ...
Roberto Robles   +8 more
wiley   +2 more sources

Atomic‐Level Structural Characteristics of β‐Relaxation in Metallic Glasses

open access: yesAdvanced Science, EarlyView.
Using in situ synchrotron radiation X‐ray techniques, this study experimentally characterizes β‐relaxation at the atomic scale, linking it explicitly to tricapped trigonal prism (TTP)‐like atomic structures and fast atomic motions. Cyclic heating reveals β‐relaxation as irreversible yet reactivatable through rejuvenation, offering unprecedented insight
Tianding Xu   +7 more
wiley   +1 more source

Crystal Structures and Intermolecular Interactions in α$\alpha$‐ and β$\beta$‐phosgene

open access: yesAngewandte Chemie, EarlyView.
Despite its notorious reputation as a war gas, phosgene (COCl2${\rm COCl}_2$) is one of the most important intermediate chemicals in industry. In this study, we present the crystal structures of two phosgene polymorphs as deduced from powder neutron diffraction and show which intermolecular interactions stabilise the different modifications.
Sven Ringelband   +6 more
wiley   +2 more sources

Energy dependence of fast neutron scattering cross-section for 54Fe nuclei

open access: yesЯдерна фізика та енергетика, 2017
omparison and analysis of experimental data on neutron interaction cross-sections for 54Fe nuclei were made in the energy range 0.3 - 26 MeV. The applicability of the optical-statistical approach and coupled-channels method for the description of ...
I. O. Korzh   +2 more
doaj  

Advancing Energy Materials by In Situ Atomic Scale Methods

open access: yesAdvanced Energy Materials, Volume 15, Issue 11, March 18, 2025.
Progress in in situ atomic scale methods leads to an improved understanding of new and advanced energy materials, where a local understanding of complex, inhomogeneous systems or interfaces down to the atomic scale and quantum level is required. Topics from photovoltaics, dissipation losses, phase transitions, and chemical energy conversion are ...
Christian Jooss   +21 more
wiley   +1 more source

Selective Reductive Amination of Carbonyls to Primary Amines Under Ambient Conditions Over Rh/MFM‐300(Cr)

open access: yesAngewandte Chemie, EarlyView.
Rh/MFM‐300(Cr) enables highly selective reductive amination of biomass‐derived and other carbonyls with NH3 and H2 to affordprimary amines with up to 99% selectivity under ambient conditions (25 °C, 1 atm). Abstract The synthesis of organic amines via reductive amination of biomass‐derived carbonyl compounds is an important target for sustainable ...
Qingqing Mei   +11 more
wiley   +2 more sources

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