Results 61 to 70 of about 3,149 (205)

Flexoelectrically Induced Polar Topology in Twisted SrTiO3 Membranes

Advanced Materials, EarlyView.
Twisted SrTiO3 bilayers host polar vortices of flexoelectric origin, revealed through combined experiment and theory. By reconstructing polarization from the toroidal moment of strain gradients, the work establishes a 3D chiral state with broken inversion and mirror symmetries.
Isabel Tenreiro, Hugo Aramberri, Víctor Rouco, Gabriel Sánchez‐Santolino, Mariona Cabero, Fernando Gallego, David Sánchez‐Manzano, José M. González‐Calbet, Federico Mompeán, Mar García‐Hernández, Alberto Rivera‐Calzada, Jorge Íñiguez‐González, Carlos León, Jacobo Santamaría   +13 more
wiley   +1 more source

Two‐Dimensional Layered Oxides and the Two‐Dimensionalization of Bulk Oxides for Post‐Moore Information Devices

Information &Functional Materials, EarlyView.
This review systematically summarizes two‐dimensional layered and nonlayered oxides, focusing on their synthesis, properties, and post‐Moore applications in transistors, gate dielectrics, optoelectronics, and ferroelectric/magnetic devices. It also discusses challenges including scalable growth and interface engineering, along with future industrial ...
Xinjie Hou, Yanchang Zhou, Yushan Zhu, Xiao Zhang, Ruiqing Cheng, Jun He   +5 more
wiley   +1 more source

WFSuite: a Python software suite for X‐ray wavefront sensing and at‐wavelength metrology

Journal of Synchrotron Radiation, EarlyView.
WFSuite is an open‐source Python suite for speckle‐based X‐ray wavefront reconstruction, offering both relative metrology and absolute phase modules. It streamlines wavefront characterization and feedback control for synchrotron and XFEL applications.WFSuite is a Python‐based software suite for X‐ray wavefront sensing and at‐wavelength metrology for ...
Xianbo Shi, Luca Rebuffi, Zhi Qiao, Yu-Chung Lin, Lahsen Assoufid   +4 more
wiley   +1 more source

The PERCIVAL detector: first user experiments

Journal of Synchrotron Radiation, 2023
The PERCIVAL detector is a CMOS imager designed for the soft X-ray regime at photon sources. Although still in its final development phase, it has recently seen its first user experiments: ptychography at a free-electron laser, holographic imaging at a ...
J. Correa, M. Mehrjoo, R. Battistelli, F. Lehmkühler, A. Marras, C. B. Wunderer, T. Hirono, V. Felk, F. Krivan, S. Lange, I. Shevyakov, V. Vardanyan, M. Zimmer, M. Hoesch, K. Bagschik, N. Guerrini, B. Marsh, I. Sedgwick, G. Cautero, L. Stebel, D. Giuressi, R. H. Menk, A. Greer, T. Nicholls, W. Nichols, U. Pedersen, P. Shikhaliev, N. Tartoni, H. J. Hyun, S. H. Kim, S. Y. Park, K. S. Kim, F. Orsini, F. J. Iguaz, F. Büttner, B. Pfau, E. Plönjes, K. Kharitonov, M. Ruiz-Lopez, R. Pan, S. Gang, B. Keitel, H. Graafsma   +42 more
doaj   +1 more source

A Bayesian approach to spectroscopic depth sectioning for locating dopant atoms

Journal of Microscopy, EarlyView.
Abstract Locating dopants in 3D is of great interest as advanced materials and devices increasingly rely on control at atomic dimensions, and microscopy tools are constantly in development for this purpose. One potential tool is electron energy loss spectroscopy (EELS) depth sectioning, where a core‐loss signal is collected as a function of electron ...
Michael Deimetry, Timothy C. Petersen, Matthew Weyland, Scott D. Findlay   +3 more
wiley   +1 more source

First X-ray spectral ptychography and resonant ptychographic computed tomography experiments at the SWING beamline from Synchrotron SOLEIL

Journal of Synchrotron Radiation
X-ray ptychography and ptychographic computed tomography have seen a rapid rise since the advent of fourth-generation synchrotrons with a high degree of coherent radiation.
Anico Kulow, Javier Pérez, Redhouane Boudjehem, Eric Gautier, Sébastien Pairis, Samy Ould-Chikh, Jean-Louis Hazemann, Julio César da Silva   +7 more
doaj   +1 more source

Automatic parameter selection for electron ptychography via Bayesian optimization

Scientific Reports, 2022
Electron ptychography provides new opportunities to resolve atomic structures with deep sub-angstrom spatial resolution and to study electron-beam sensitive materials with high dose efficiency. In practice, obtaining accurate ptychography images requires
Michael C. Cao, Zhen Chen, Yi Jiang, Yimo Han   +3 more
doaj   +1 more source

Continuous-Wave THz Imaging for Biomedical Samples

Applied Sciences, 2020
In the past few decades, the applications of terahertz (THz) spectroscopy and imaging technology have seen significant developments in the fields of biology, medical diagnosis, food safety, and nondestructive testing.
Yaya Zhang, Chuting Wang, Bingxin Huai, Shiyu Wang, Yating Zhang, Dayong Wang, Lu Rong, Yongchang Zheng   +7 more
doaj   +1 more source

Evaluation of Mechanical Properties of Phase‐Separated Cellulose Filler/Poly(Lactic Acid)/Elastomer Composites via Microstructure‐Informed Physics Simulation and In Situ Synchrotron X‐Ray Micro‐CT

Journal of Applied Polymer Science, Volume 143, Issue 20, May 20, 2026.
Phase‐separation microstructure and mechanical properties of a ternary biocomposite evaluated by integrated AFM, AFM‐informed FEM, and in situ X‐ray CT. ABSTRACT This study investigates phase‐separated cellulose filler/poly(lactic acid) (PLA)/elastomer ternary composites to enhance the mechanical performance of bioplastics. Atomic force microscopy (AFM)
Yoshiaki Kawagoe, Kazumasa Sasaki, Yuki Takayama, Keiichi Shirasu, Junsei Aoki, Soya Hayashi, Masayuki Omoto, Makoto Kato, Tomonaga Okabe   +8 more
wiley   +1 more source

X-ray Fourier ptychography [PDF]

Science Advances, 2019
A new image acquisition scheme increases resolution and sensitivity of x-ray microscopes.
Klaus Wakonig, Ana Diaz, Anne Bonnin, Marco Stampanoni, Anna Bergamaschi, Johannes Ihli, Manuel Guizar-Sicairos, Andreas Menzel   +7 more
openaire   +4 more sources