Results 121 to 130 of about 431,245 (326)

Spatially Encoded Polaritonic Ultra‐Strong Coupling in Gradient Metasurfaces with Epsilon‐Near‐Zero Modes

Advanced Materials, EarlyView.
Dielectric dual gradient metasurfaces supporting quasi‐bound‐states‐in‐the‐continuum are leveraged to spatially encode both the spectral and coupling parameter space and demonstrate ultra‐strong coupling to an epsilon‐near‐zero mode in an ultra‐thin SiO2 layer.The platform achieves exceptional mode overlap, reaching a normalized coupling strength of η =
Enrico Baù, Andreas Aigner, Jonas Biechteler, Connor Heimig, Thomas Weber, Thorsten Gölz, Stefan A. Maier, Andreas Tittl   +7 more
wiley   +1 more source

Symmetries in Stellar, Galactic and Extragalactic Astronomy [PDF]

, 2022
L. Szabados
openalex   +1 more source

StarFlow: Leveraging Normalizing Flows for Stellar Age Estimation in SDSS-V DR19

The Astronomical Journal
Understanding the ages of stars is crucial for unraveling the formation history and evolution of our Galaxy. Traditional methods for estimating stellar ages from spectroscopic data often struggle with providing appropriate uncertainty estimations and are
Alexander Stone-Martinez, Jon A. Holtzman, Yuxi(Lucy) Lu, Sten Hasselquist, Julie Imig, Emily J. Griffith, Earl P. Bellinger, Andrew K. Saydjari   +7 more
doaj   +1 more source

GNSS Astronomy: a new field of synergestic research facilitated by the response of the Earth's ionosphere to solar flares and stellar superflares

, 2023
Manuel Hernández Pajares, David Moreno‐Borràs, O. Fors, Liu Qi, Alberto Garcıa Rigo, Enric Monte-Moreno, Roma-Dollase David, Olivares-Pulido Germán, Victoria Graffigna, Raül Orús Pérez, Ventura-Traveset Javier   +10 more
openalex   +1 more source

astrosource: automating optical astronomy measurement, calibration and analysis for variable stellar sources from provided photometry [PDF]

, 2021
Michael Fitzgerald, Edward Gomez, Saeed Salimpour, Joseph Singleton, R. W. Wibowo   +4 more
openalex   +1 more source

Ultrafast Terahertz Field Control of the Emergent Magnetic and Electronic Interactions at Oxide Interfaces

Advanced Materials, EarlyView.
Intense single‐cycle THz electric‐field pulses enable ultrafast control of emergent electronic and magnetic states at LaNiO3/CaMnO3 interfaces. Combined X‐ray and optical probes reveal sub‐picosecond demagnetization driven by spin‐polarized currents and slower magnetoelastic dynamics linked to spin–lattice coupling.
Abigail M. Derrico, Martina Basini, Vivek Unikandanunni, Jay R. Paudel, Mikhail Kareev, Michael Terilli, Tsung‐Chi Wu, Afnan Alostaz, Christoph Klewe, Padraic Shafer, Andrei Gloskovskii, Christoph Schlueter, Claus M. Schneider, Jak Chakhalian, Stefano Bonetti, Alexander X. Gray   +15 more
wiley   +1 more source

Does the Scaling Relation Depend on Metallicity? Insights from 3D Convection Simulations

The Astrophysical Journal
Solar-like oscillations have been detected in thousands of stars thanks to modern space missions. These oscillations have been used to measure stellar masses and ages, which have been widely applied in Galactic archeology.
Yixiao Zhou, Jørgen Christensen-Dalsgaard, Martin Asplund, Yaguang Li, Regner Trampedach, Yuan-Sen Ting, Jakob L. Rørsted   +6 more
doaj   +1 more source

Observation of Topological Chirality Switching Induced Freezing of a Skyrmion Crystal

Advanced Materials, EarlyView.
Using Lorentz Transmission electron microscopy, it is shown that in the insulating van der Waals ferromagnet, CrBr3, a magnetic field can cause Bloch skyrmionic bubbles to spontaneously switch their chirality. As achiral type‐II bubbles are an intermediate state, the bubbles rapidly elongate and shrink when switching, thereby inducing a freezing of the
John Fullerton, Yue Li, Harshvardhan Solanki, Sergey Grebenchuk, Magdalena Grzeszczyk, Zhaolong Chen, Makars Šiškins, Kostya S. Novoselov, Maciej Koperski, Elton J. G. Santos, Charudatta Phatak   +10 more
wiley   +1 more source

New distance measures for classifying X-ray astronomy data into stellar classes [PDF]

, 2018
Amparo Baı́llo, Javier Cárcamo, Konstantin V. Getman   +2 more
openalex   +1 more source

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

Advanced 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, Takumi Iwaya, Kosuke Nakayama, Ting Yong Lim, Lujin Min, Jingyang He, Yu Wang, Venkatraman Gopalan, Zhijian Xie, Xing‐Chen Pan, Yong P. Chen, Tay‐Rong Chang, Hsin Lin, Liang Fu, Kouji Segawa, Takafumi Sato, Zhiqiang Mao   +16 more
wiley   +1 more source