Results 141 to 150 of about 231,112 (338)

Disorder Scattering Induced Large Room Temperature Nonlinear Anomalous Hall Effect in a Semiconductor CdGeAs2

open access: yesAdvanced Materials, EarlyView.
Bulk CdGeAs2, a well‐known nonlinear optical semiconductor, exhibits an exceptionally large room‐temperature nonlinear Hall effect (NLHE), achieving a record‐high nonlinear Hall responsivity of 2.2 × 10−3 m/V. This pronounced NLHE enables broadband frequency mixing up to the megahertz regime, establishing CdGeAs2 as a promising platform for next ...
Seng Huat Lee   +16 more
wiley   +1 more source

QCD axial anomaly and mixing of pseudoscalars

open access: yesNuclear Physics B, 1989
Abstract Starting with the QCD axial anomaly we discuss systematically the mixing of light-light and light-heavy pseudoscalar mesons. The π0−η and π0−η′ mixing angles are found to be λ πη ⋍0.016 and λ πη′ ⋍0.004 , which are derived without invoking the diagonalization of the mass matrix.
openaire   +1 more source

Active Learning‐Guided Accelerated Discovery of Ultra‐Efficient High‐Entropy Thermoelectrics

open access: yesAdvanced Materials, EarlyView.
An active learning framework is introduced for the accelerated discovery of high‐entropy chalcogenides with superior thermoelectric performance. Only 80 targeted syntheses, selected from 16206 possible combinations, led to three high‐performance compositions, demonstrating the remarkable efficiency of data‐driven guidance in experimental materials ...
Hanhwi Jang   +8 more
wiley   +1 more source

Anomaly of subsystem symmetries in exotic and foliated BF theories

open access: yesJournal of High Energy Physics
We study the mixed ’t Hooft anomaly of the subsystem symmetries in the exotic BF theory and the foliated BF theory in 2+1 dimensions, both of which are fractonic quantum field theories describing the equivalent physics.
Shutaro Shimamura
doaj   +1 more source

And ( ) Anomalies Resolved With Lepton Mixing

open access: yesNuclear Physics, 2018
In a recent paper [1], we had advanced a minimal resolution of some of the persistent anomalies in semileptonic B-decays. These include the neutral-current observables RK and RK⁎, as well as the charged-current observables R(D) and R(D⁎). Recently, it has been observed that the semileptonic decays of the Bc meson also hint at a similar type of anomaly.
Choudhury, Debajyoti   +3 more
openaire  

Electron Channeling Contrast Imaging of Ferroelastic Domains

open access: yesAdvanced Materials, EarlyView.
A simple scanning electron microscopy technique, electron channeling contrast imaging, unveils nanoscale ferroelastic domains and their coupling to functional properties in oxide heterostructures. The work demonstrates high‐resolution mapping of both surface and buried domains, broadening the experimental toolbox for ferroic and quantum oxide systems ...
Wei Peng   +13 more
wiley   +1 more source

Impact of Anode to Cathode Crossover in Lithium‐metal Batteries With High‐Nickel Cathodes

open access: yesAdvanced Materials, EarlyView.
Anode‐to‐cathode chemical crossover is identified as a critical degradation mechanism in lithium‐metal batteries. Full‐cell experiments with high‐Ni layered oxide cathodes and localized high‐concentration electrolytes reveal accelerated cathode impedance growth and CEI thickening driven by lithium‐metal anodes. The findings underscore the importance of
Zezhou Guo   +2 more
wiley   +1 more source

Revealing Spatiotemporal Characteristics of Global Seismic Thermal Anomalies: Framework Based on Annual Energy Balance and Geospatial Constraints

open access: yesRemote Sensing
Thermal anomalies serve as potential earthquake precursors and are crucial for understanding the mechanisms underlying seismogenic mechanisms and geodynamic perturbations.
Peng Yang   +5 more
doaj   +1 more source

High‐κ Perovskite‐Like Ternary Niobium Oxide Dielectrics for 2D Electronics

open access: yesAdvanced Materials, EarlyView.
High‐κ dielectrics are vital for scaled electronics. Here, a family of 2D high‐κ perovskite‐like ternary niobium oxides is synthesized via a molten salt‐assisted method. Their integration into FETs and logic gates reveals superior switching characteristics, providing a fresh material platform and new insights for the advancement of high‐performance 2D ...
Biao Zhang   +10 more
wiley   +1 more source

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