Results 101 to 110 of about 2,261,840 (225)

Room‐Temperature Skyrmionic Synapse in 2D Ferromagnet Fe3GaTe2 Operating via Collective Spin Texture Transformation

open access: yesAdvanced Materials, Volume 38, Issue 49, 1 September 2026.
We demonstrate a neuromorphic synapse in 2D Fe3GaTe2 flakes. The device operates via a current‐driven transformation from a skyrmion‐lattice to a stripe‐domain state, yielding a linear anomalous Hall resistance response with a tunable slope to enable multiply‐accumulate operations. Simulations confirm its viability in artificial neural networks.
Jixiang Huang   +20 more
wiley   +1 more source

The origin of cosmic rays and TeV gamma-ray astronomy

open access: yesEPJ Web of Conferences, 2013
Cosmic rays are accelerated to high energies in Galactic and extragalactic objects like Supernova remnants (SNR) and active galactic nuclei (AGN). How these accelerators work and how efficient they accelerate different types of particles to energies of ...
Maier Gernot
doaj   +1 more source

Light‐Imprinted Chirality in Nanomaterials: From Principles to Applications

open access: yesAdvanced Science, Volume 13, Issue 49, 3 September 2026.
Light‐induced chirality represents a transformative paradigm for fabricating chiral nanostructures. This review provides a comprehensive framework encompassing light‐based strategies for imprinting and tuning chirality in nanomaterials, which guides researchers in harnessing light to create next‐generation functional materials.
Xinru Jin   +3 more
wiley   +1 more source

GRB 250704B: An Off-axis Short GRB with a Long-lived Afterglow Plateau

open access: yesThe Astrophysical Journal Letters
We present a detailed multiwavelength afterglow study of the short gamma-ray burst (GRB) GRB 250704B, extensively monitored in optical and near-infrared bands.
Vishwajeet Swain   +29 more
doaj   +1 more source

Defects Induced Instability of Perovskite Solar Cells

open access: yesAdvanced Energy and Sustainability Research, Volume 7, Issue 9, September 2026.
Defect passivation and grain‐size engineering in perovskite films are achieved through precursor additives, antisolvent additives, interfacial modification, light treatment, surface polishing, and temperature treatment. The synergistic effects suppress defect states and enhance film quality, providing insights into effective strategies for improving ...
Davoud Dastan   +13 more
wiley   +1 more source

TeV astronomy of millisecond pulsars [PDF]

open access: yes, 1991
This thesis is concerned with the detection of pulsed TeV γ-rays from millisecond pulsars. These stars appear to include some very efficient producers of high energy particles, but the mechanisms by which they produce TeV γ-rays are still a matter of ...
Brazler, Karen Tracy Susan
core  

Anisotropy of the sky distribution of gamma-ray bursts [PDF]

open access: yes, 1998
The isotropy of gamma-ray bursts collected in current BATSE catalog is studied. It is shown that the quadrupole term being proportional to \sim sin 2b sin l is non-zero with a probability of 99.9%. The occurrence of this anisotropy term is then confirmed
Balázs, Lajos György   +2 more
core   +1 more source

The 157 Month Swift/BAT All-sky Hard X-Ray Survey

open access: yesThe Astrophysical Journal
The Burst Alert Telescope (BAT) on board the Neil Gehrels Swift Observatory has been serving as a survey instrument for the hard X-ray sky, and has detected thousands of X-ray sources (e.g., active galactic nuclei, X-ray binaries, etc).
Amy Y. Lien   +14 more
doaj   +1 more source

Operando Visualization of Dynamic Lithium and Electrolyte Transport in 18650‐Type Lithium‐Ion Cells

open access: yesBatteries &Supercaps, Volume 9, Issue 9, September 2026.
Nonlinear volume changes in commercial 18650 cylindrical cells were studied macroscopically, with a focus on electrolyte distribution. Using optical micrometry and neutron imaging, researchers observed anisotropic cell expansion linked to lithium transport and electrolyte redistribution.
Dominik Petz   +4 more
wiley   +1 more source

The First LHAASO Catalog of Gamma-Ray Sources

open access: yesThe Astrophysical Journal Supplement Series
We present the first catalog of very-high-energy and ultra-high-energy gamma-ray sources detected by the Large High Altitude Air Shower Observatory. The catalog was compiled using 508 days of data collected by the Water Cherenkov Detector Array from 2021
Zhen Cao   +280 more
doaj   +1 more source

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