Results 141 to 150 of about 382,328 (344)

Anomalous X-ray diffraction studies of ion transport in K+ channels

Nature Communications, 2018
The number of K+ occupied binding sites in the selectivity filter of potassium ion channels is still under debate. Here, the authors collect diffraction data on the K+ selective NaK channel NaK2K at a wavelength of 3.35 Å, close to the K absorption edge,
Patricia S. Langan, Venu Gopal Vandavasi, Kevin L. Weiss, Pavel V. Afonine, Kamel el Omari, Ramona Duman, Armin Wagner, Leighton Coates   +7 more
doaj   +1 more source

Quantum Thermalization Dynamics of Fermi Gases Quenched to the BEC‐BCS Crossover

Advanced Science, EarlyView.
This study, reporting the first experimental realization of interaction quench far faster than the Fermi timescale in fermionic many‐body systems, explores real‐time quantum thermalization dynamics in the BEC‐BCS crossover. It observes prethermal states with distinct lifetimes after quantum quench, uncovers universal prethermal scaling, and observes ...
Licheng Yi, Shuxian Yu, Meimei Wu, Shujin Deng, Haibin Wu   +4 more
wiley   +1 more source

Crystal Engineering of Hydrogen Bonding for Direct Air Capture of CO₂: A Quantum Crystallography Perspective

Crystals
Rising atmospheric CO2 levels demand efficient and sustainable carbon capture solutions. Direct air capture (DAC) via crystallizing hydrogen-bonded frameworks such as carbonate salts has emerged as a promising approach. This review explores the potential
Sylwia Pawlędzio, Xiaoping Wang
doaj   +1 more source

Form factors in magnetic scattering of thermal neutrons [PDF]

arXiv, 2007
This lecture addresses the concept of form factor in magnetic scattering of thermal neutrons, analyzing its meaning, discussing its measurement by polarized neutrons and detailing its computation for the ions by the spherical tensor operator formalism.
arxiv  

Highly Efficient Spin‐Orbit Torque Switching in a Topological Insulator/Chromium Telluride Heterostructure with Opposite Berry Curvature

Advanced Electronic Materials, EarlyView.
This study reports high spin‐torque efficiency (ΔHLJ=12.9×10−6mTA−1cm2$\frac{{{{\Delta}}{H_L}}}{J} = 12.9 \times {10^{ - 6}}{\mathrm{mT}}\;{{\mathrm{A}}^{ - 1}}{\mathrm{c}}{{\mathrm{m}}^2}$) and spin Hall conductivity (σSH=4.8×106ℏ2eΩ−1m−1${\sigma _{SH}} = 4.8 \times {10^6}\frac{\hbar }{{2e}}{{{\Omega}}^{ - 1}}{{\mathrm{m}}^{ - 1}}$), along with ...
Kewen Zhang, Yuhang Wu, Jingyan Song, Yitian Guo, Xiaolun Cai, Long Cheng, Dongxing Zheng, Aitian Chen, Peng Li, Xixiang Zhang   +9 more
wiley   +1 more source

Solvated PbI2 Clusters Preceding the Crystallization of Lead Halide Perovskites–a UV/VIS In Situ Study

Advanced Electronic Materials, EarlyView.
This work focuses on the crystallization dynamics in lead iodide perovskite films: In situ UV absorption spectroscopy reveals a PbI2‐DMF solvated (PDS) phase before nucleation, influencing perovskite formation. PDS clusters act as nucleation seeds, linking precursor solution concentration to crystallization.
Maximilian Spies, Simon Biberger, Fabian Eller, Eva M. Herzig, Anna Köhler   +4 more
wiley   +1 more source

Transient Supramolecular Polymers by pH‐Gated Conformational Control of a Self‐Assembling Cyclodextrin

Angewandte Chemie, EarlyView.
A metastable cyclodextrin monomer can form kinetically trapped supramolecular polymer at low pH. Raising the pH triggers gradual depolymerization into the self‐included monomer with a rate that can be preset by tuning the pH value. The pH‐dependence is directly associated with the rigidity of the cyclodextrin bridge, which is modulated by protonation ...
Wenting Hu, Valérian Libérioux, Julien Rossignol, Gaëlle Pembouong, Etienne Derat, Mickaël Ménand, Laurent Bouteiller, Matthieu Sollogoub   +7 more
wiley   +2 more sources

Neutron phase filtering for separating phase- and attenuation signal in aluminium and anodic aluminium oxide

Scientific Reports
Neutron imaging has gained significant importance as a material characterisation technique and is particularly useful to visualise hydrogenous materials in objects opaque to other radiations.
Estrid Buhl Naver, Okan Yetik, Noémie Ott, Matteo Busi, Pavel Trtik, Luise Theil Kuhn, Markus Strobl   +6 more
doaj   +1 more source

Scandium Induced Structural Disorder and Vacancy Engineering in Li3Sb – Superior Ionic Conductivity in Li3−3xScxSb

Advanced Energy Materials, EarlyView.
A superionic conductivity of 42 mS cm−1 at 298 K is reported for Li2.55Sc0.15Sb, which exceeds the highest ionic conductivity reported for a solid Li‐ion conductor to date by 10 mS cm−1. In the series Li3−3xScxSb (0 < x ≤ 0.15), the gradual incorporation of Sc facilitates vacancy formation, converting pristine Li3Sb from an electrical to an ionic ...
Jingwen Jiang, Tobias Kutsch, Wilhelm Klein, Manuel Botta, Anatoliy Senyshyn, Robert J. Spranger, Volodymyr Baran, Leo van Wüllen, Hubert A. Gasteiger, Thomas F. Fässler   +9 more
wiley   +1 more source

Exploring the Interplay of Lattice Dynamics and Charge Transport in Organic Semiconductors: Progress Toward Rational Phonon Engineering

Angewandte Chemie, EarlyView.
This Minireview highlights recent advances in understanding the role of lattice dynamics and electron–phonon coupling in organic semiconductors. Emphasis is placed on mode‐resolved insights into dynamics‐induced electronic disorder, emerging strategies for phonon engineering, and the implications of both low‐ and high‐frequency vibrations on charge ...
Barbara M. T. C. Peluzo, Rahul Meena, Luca Catalano, Guillaume Schweicher, Michael T. Ruggiero   +4 more
wiley   +2 more sources