Results 121 to 130 of about 250,974 (321)

Neutron scattering and neural-network quantum molecular dynamics investigation of the vibrations of ammonia along the solid-to-liquid transition

Nature Communications
Vibrational spectroscopy allows us to understand complex physical and chemical interactions of molecular crystals and liquids such as ammonia, which has recently emerged as a strong hydrogen fuel candidate to support a sustainable society.
T. M. Linker, A. Krishnamoorthy, L. L. Daemen, A. J. Ramirez-Cuesta, K. Nomura, A. Nakano, Y. Q. Cheng, W. R. Hicks, A. I. Kolesnikov, P. D. Vashishta   +9 more
doaj   +1 more source

Advances in Halide Perovskites for Photon Radiation Detectors

Advanced Materials Technologies, EarlyView.
This work highlights recent progress in perovskite‐based photon radiation detectors, covering organic–inorganic hybrid, inorganic, lead‐free double, and vacancy‐ordered halide perovskites. Their detection performance is compared, material‐specific advantages and challenges are examined, and provides insight into current limitations and future ...
Liangling Wang, Jieqi Wang, Xiaojun Cui, Carsten Ronning   +3 more
wiley   +1 more source

Development of High‐Performance Multilayer Monochromators

Advanced Optical Materials, EarlyView.
Detailed insights into the optical and multilayer design of Double Multilayer Monochromators (DMM) are presented and fully characterized, including key optimization strategies and solutions to fabrication challenges. By integrating in‐house Ion Beam Figuring and a high uniformity multilayer coating process, the developed DMMs achieve high reflectivity,
Wadwan Singhapong, Arindam Majhi, Wai Jue Tan, Vishal Dhamgaye, Riley Shurvinton, Paresh Pradhan, Igor Dolbnya, Lucia Alianelli, Chris Bowen, Alexander J. G. Lunt, Hongchang Wang, Kawal Sawhney   +11 more
wiley   +1 more source

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

Deconstruction of the Anisotropic Magnetic Interactions from Spin‐Entangled Optical Excitations in van der Waals Antiferromagnets

Advanced Science, EarlyView.
A self‐consistent ab initio many‐body perturbation theory combined with locally exact dynamical mean field theory is employed to compute the sub‐bandgap electronic transitions in van der Waals antiferromagnets. The rich interplay between the magnetic ordering and spin‐entangled optical transitions, manifested as photoluminescence and absorption ...
Dipankar Jana, Swagata Acharya, Milan Orlita, Clement Faugeras, Dimitar Pashov, Mark van Schilfgaarde, Marek Potemski, Maciej Koperski   +7 more
wiley   +1 more source

Strong Proton‐Phonon Coupling Drives Fast Ion Transport in Perovskites

Advanced Science, EarlyView.
Experimental and computational phonon analysis of ABO3‐type proton conductor BaSnO3 shows that substitution on the B‐site with yttrium forms an imaginary phonon mode which is instrumental for the function as proton conductor. This overcompensates the adverse proton trapping effect of the yttrium.
Alexey Rulev, Nobumoto Nagasawa, Hongxin Wang, Vladimir Pomjakushin, Martin Kunz, Yoshitaka Yoda, Stephen P. Cramer, Qianli Chen, Artur Braun   +8 more
wiley   +1 more source

Chemically Driven Nano‐Elastic Heterogeneities Control Fragility in Volcanic Melts

Advanced Science, EarlyView.
The study elucidates how nanoscale structural heterogeneity governs the mechanical behavior of volcanic glasses across compositions from basalt to rhyolite. Using a physicochemical framework, correlation length (ξ) and microscopic free volume (Vc) are derived from vibrational and physical properties, revealing systematic trends with silica content that
Michele Cassetta, Daria Szewczyk, Gabriele Giuliani, Serena Dominijanni, Francesco Vetere, Gianluca Iezzi, Francesco Radica, Dmitry Bondar, Fabrizio Di Fiore, Alessio Pontesilli, Levent Karacasulu, Nicola Daldosso, Hideyuki Mizuno, Danilo Di Genova   +13 more
wiley   +1 more source

Mechanism of Anomalous Anisotropic Colossal Magnetoresistance in Quasi‐2D Mn3Si2Te6 Bulk Single Crystal

Advanced Science, EarlyView.
The external field exceeds Hd, the speed polarization abruptly reorients to align with the Mn magnetic moments, leading to an MR ≈ −100%. Abstract Mn3Si2Te6, quasi‐2D ferrimagnetic semiconductor, exhibits anomalous saturated colossal magnetoresistance (CMR) only when a magnetic field is applied along its magnetic hard magnetization axis, suggesting ...
Shiqi Li, Xiong He, Shuai Li, Tianyi Li, Wenhao Zhang, Lizhi Yi, Guangduo Lu, Zhengcai Xia, Yunli Xu, John Q Xiao, Liqing Pan   +10 more
wiley   +1 more source

Multicharged Zwitterions form Superior Antifouling Interfaces

Advanced Science, EarlyView.
Bolaamphiphilic multicharged sulfobetaine zwitterion forms self‐assembled monolayer for antifouling applications and vesicular aggregates for drug delivery applications. Abstract The long‐term prevention of unwanted protein and microbial accumulation on surfaces, including medical devices, remains a significant and largely unresolved challenge. Decades
Declan Meehan, Jessica McMaster, Ayantika Kundu, Matthew P. Wylie, Joseph S. Vyle, Karl J. Hale, Marijana Blesic   +6 more
wiley   +1 more source