Results 111 to 120 of about 470,881 (224)

Imaging Ionic Displacements Across Inclined Ferroelectric Domains by a Reciprocity Approach to 4D‐STEM

Small, EarlyView.
Four‐dimensional STEM comprises a vast portfolio of electron microscopy methods in one data set, conventional plane‐wave illumination TEM being one of them. Here, the principle of reciprocity is employed to produce true structural projections of misoriented ferroelectric domains at atomic resolution. By reciprocal TEM imaging from four‐dimensional STEM
Jean Felix Dushimineza, Max Leo Leidl, Sebastian Sturm, Thibaud Denneulin, Knut Müller‐Caspary   +4 more
wiley   +1 more source

Colloidal Behavior of Carbonate Particles Microbially Precipitated in Microfluidic Droplets

Small, EarlyView.
In Microbially Induced Calcium Carbonate Precipitation (MICP), ureolytic bacteria trigger calcium carbonate precipitation via pH‐increasing urea hydrolysis. This enzymatically driven reaction induces the colloidal assembly of bacteria and carbonate particles into fractal networks.
Nadia Enrriquez Casimiro, Muja Emilie Ye, Carla Fernández‐Rico, Siiri Bienz, Naresh Kumar, André R. Studart   +5 more
wiley   +1 more source

Modification of transparent materials by tightly focused annular, radially and azimuthally polarized ultrafast laser beams

Recently, strong longitudinal electric fields have raised great interest in the laser fabrication, microscopy and optical data storage [1]. Here we demonstrate high quality cylindrically polarized annular beam produced by ultrafast laser written ...
Kazansky, P.G., Beresna, M., Gecevičius, M., Zhang, J.   +3 more
core   +1 more source

Accessing Both Electrochemical SEIRA and SERS With Highly Sensitive Metamaterials for Enhanced Molecular Identification

Small, EarlyView.
Surface‐enhanced infrared absorption (SEIRA) and Raman scattering (SERS) are complementary, highly sensitive molecular detection methods. A reusable metamaterial substrate capable of combined SEIRA and SERS is used here for real‐time sensing, tracking interfacial dynamics in an electrochemical reaction and detecting symmetry‐breaking behavior at the ...
Nicolas Spiesshofer, Tabitha Jones, Sarah May Sibug‐Torres, Zoltan Sztranyovszky, Caleb Todd, Shijie Zhu, Yeeun Roh, Rakesh Arul, Alexander Squires, Ivana Qianqi Lin, Angela Demetriadou, David O. Scanlon, Viv Lindo, Jeremy J. Baumberg   +13 more
wiley   +1 more source

Physics with polarized protons at HERA

, 1997
The operation of HERA with polarized proton and electron beams will allow to study a wide variety of observables in polarized electron-proton collisions at #sq root#(s)=300 GeV.
Deutsches Elektronen-Synchrotron (DESY), Hamburg (Germany), Roeck, A. de, Gehrmann, T.   +2 more
core  

Non‐Invasive Smart Pressure Sensor for Early‐Stage Thermal Runaway Warning for Cylindrical Batteries

Small, EarlyView.
A smart pressure sensor based on shape memory sensing composite is introduced, which enables conformal contact with cylindrical batteries and can continuously monitor the lateral pressure caused by volume expansion during charging‐discharging. This smart sensor features impressive stability, recoverability and a broad pressure detection range.
Yi Liu, Ang Wang, Yingying Xu, Yaobo Wu, Shaohua Yang, Youyun Zou, Xinyu Wang, Yuqi Huang, Zongrong Wang, Shaoxing Qu   +9 more
wiley   +1 more source

Computational Chemistry‐Driven Advances in Eco‐Friendly Insulation Gas Research: Multi‐Dimensional Prediction, Synergistic Screening, Stability Evaluation and Molecular Design

High Voltage, EarlyView.
ABSTRACT Sulphur hexafluoride has become a priority substance for greenhouse gas mitigation in electric systems. An ideal substitute should simultaneously satisfy requirements for dielectric strength, boiling point, global warming potential and chemical stability; however, these metrics are deeply coupled and mutually constraining at the molecular ...
Rui Qiu, Wenjun Zhou, Xuzhu Dong, Keli Gao, Baoshan Wang, Pascal Brault, Han Li, Yu Zheng, Shubo Ren   +8 more
wiley   +1 more source

Polynomial‐shaped electrodes for adaptive X‐ray optics

Journal of Synchrotron Radiation, EarlyView.
A shaped electrode design for lithium niobate adaptive X‐ray mirrors connects actuator degrees of freedom to specific polynomial orders, enabling general shape control and the correction of defocus, coma and fourth‐order aberrations with a limited number of inputs.For adaptive mirrors on X‐ray beamlines and optical systems, we describe a strategy for ...
Kenneth A. Goldberg, Francesco Marzari, Grant D. Cutler   +2 more
wiley   +1 more source

High‐purity X‐ray polarimetry at high energies for Mössbauer spectroscopy

Journal of Synchrotron Radiation, EarlyView.
This work extends high‐purity X‐ray polarimetry into the 15–30 keV range, enabling polarization‐filtered synchrotron Mössbauer spectroscopy of higher‐energy nuclear resonances. A proof‐of‐principle experiment at 22.494 keV demonstrates a polarization purity of (1.2 ± 0.5) × 10−8, establishing the feasibility of the approach.High‐purity X‐ray ...
Berit Marx-Glowna, Ingo Uschmann, Robert Loetzsch, Willi Hippler, Judith Görs, Tony Wunderlich, Sakshath Sadashivaiah, Martin Tolkiehn, Gerhard G. Paulus, Ralf Röhlsberger   +9 more
wiley   +1 more source

Time‐resolved coherent X‐ray scattering analysis of nanorod colloids: dynamics and photon‐statistical effects in angular X‐ray cross‐correlation analysis

Journal of Synchrotron Radiation, EarlyView.
A statistical framework combining angular X‐ray cross‐correlation analysis, principal component analysis and photon‐counting simulations is presented for evaluating the detectability of orientational fluctuations in time‐resolved coherent X‐ray scattering experiments.Understanding the dynamic fluctuations of anisotropic particles is essential for ...
Taiki Hoshino, Yoshifumi Amamoto, Takahiro Mikami, Yoshiaki Honjo, Kyosuke Ozaki, Toshiyuki Nishiyama Hiraki, Haruki Nishino, Yasumasa Joti, Takaki Hatsui, Yoshiki Kohmura, Takashi Kato   +10 more
wiley   +1 more source