Martin V. Holt

Depth-Resolved X-Ray Nanoimaging of Coherent and Incoherent Energy Transport in Silicon Carbide

Kumar Neeraj, Matthew J. Highland, Tao Zhou, Burak Güzeltürk et autres

Understanding lattice dynamics is crucial for optimizing the process of creating functional structures, such as laser writing of color-center defects. However, existing structural probes have difficulty measuring structural dynamics with submicrometer depth sensitivity. Here, a depth-resolved ultrafast X-ray nanodiffraction technique is developed …

us (code pays fourni par la source)

Nanoscopic strain evolution in single-crystal battery positive electrodes

Jing Wang, Tongchao Liu, Weiyuan Huang, Lei Yu et autres

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DONUT: physics-aware machine learning for real-time X-ray nanodiffraction analysis

Aileen Luo, Tao Zhou, Ming Du, Martin V. Holt et autres

Abstract Coherent X-ray scattering techniques are critical for investigating the fundamental structural properties of materials at the nanoscale. While advancements have made these experiments more accessible, real-time analysis remains a significant bottleneck, often hindered by artifacts and computational demands. In scanning X-ray …

us (code pays fourni par la source)

346P Randomized window trial comparing molecular impact of SERD vs AI vs tamoxifen in ILC (TBCRC 037)

Steffi Oesterreich, Matthew J. Sikora, Beth Z. Clark, Martin V. Holt et autres

us, gb, Afrique du Sud (code pays fourni par la source)

Millimeter-wave dielectric tunability driven by topological polar structure switching in PbTiO3/SrTiO3 superlattices

Qian Li, Sixu Wang, Hanbin Gao, K. Okamoto et autres

cn, jp, us (code pays fourni par la source)

Strain-induced lead-free morphotropic phase boundary

Reza Namdar Ghanbari, Harikrishnan KP, Kinnary Patel, Hua Zhou et autres

Enhanced susceptibilities in ferroelectrics often arise near phase boundaries between competing ground states. While chemically-induced phase boundaries have enabled ultrahigh electrical and electromechanical responses in lead-based ferroelectrics, precise chemical tuning in lead-free alternatives, such as (K,Na)NbO3 thin films, remains challenging due to …

us, il (code pays fourni par la source)

Correlated X‐Ray and Electron Microscopies of a Single Biphasic GaAs Nanowire

Thomas Dursap, Tao Zhou, Maxime Dupraz, S. Labat et autres

Engineering the properties of semiconductors by changing their crystalline phase is a technologically and economically relevant alternative to doping using foreign elements, with strong potential for photonic and electronic applications. Although major advances have been reported recently for crystal-phase engineering of III-V …

fr, be, us (code pays fourni par la source)

DONUT: Physics-aware Machine Learning for Real-time X-ray Nanodiffraction Analysis

Aileen Luo, Tao Zhou, Ming Du, Martin V. Holt et autres

Coherent X-ray scattering techniques are critical for investigating the fundamental structural properties of materials at the nanoscale. While advancements have made these experiments more accessible, real-time analysis remains a significant bottleneck, often hindered by artifacts and computational demands. In scanning X-ray nanodiffraction …

Deep learning of structural morphology imaged by scanning X-ray diffraction microscopy

Aileen Luo, Tao Zhou, Martin V. Holt, Andrej Singer et autres

Scanning X-ray nanodiffraction microscopy is a powerful technique for spatially resolving nanoscale structural morphologies by diffraction contrast. One of the critical challenges in experimental nanodiffraction data analysis is posed by the convergence angle of nanoscale focusing optics which creates simultaneous dependency of …

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Nanodiffraction imaging of ionically driven phase separation in cobaltite heterostructures

Scott Smith, Jugal Mehta, Meera Madhavi, Cunshuo Li et autres

Controlling the anionic stoichiometry and distribution of perovskite cobaltites presents a powerful method for tailoring the magnetic and electronic properties for magneto-ionic applications. Nevertheless, the influence of nanoscale morphology, including phase separation and defects in cobaltite heterostructures, remains largely unexplored. We used …

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Nanoscale Strain and Octahedral Tilting Removes Structural and Nonradiative Defects in 2D-Templated FAPbI3

Connor J. Dolan, Andrew J. Torma, Siraj Sidhik, Faiz Mandani et autres

The halide perovskite formamidinium lead iodide (FAPbI 3 ) is a prime candidate for photovoltaics due to its excellent optoelectronic properties, but its application has been limited due to its structural instability. The large size of the FA cation results in metastability …

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High-resolution high-throughput spatiotemporal strain imaging reveals loss mechanisms in a surface acoustic wave device

Tao Zhou, Alexandre Reinhardt, Marie Bousquet, J. Eymery et autres

Surface acoustic wave devices are key components for processing radio frequency signals in wireless communication because these devices offer simultaneously high performance, compact size and low cost. The optimization of the device structure requires a quantitative understanding of energy conversion and loss …

us, fr (code pays fourni par la source)