Results 101 to 110 of about 9,521 (349)

Machine Learning Accelerated Non‐Adiabatic Molecular Dynamics Elucidates Local Polarization Effects on Non‐radiative Recombination in Halide Perovskites

Advanced Science, EarlyView.
This work proposes and constructs the Hefei‐NAMD‐S framework based on machine learning stacked models to investigate the relationship between local polarization and non‐radiative recombination. The results indicate that, compared with A‐site local polarization, B‐site local polarization shows a more evident association with the non‐radiative ...
Bing Yang, Xiaoli Wei, Bo Cai, Yan Yang, Xinghai Zhu, Yi Liu, Junmin Xia, Lihui Liu, Kun Cao, Wei Shen, Pengfei Xia, Shufen Chen, Siyu Chen, Jin Zhao   +13 more
wiley   +1 more source

Las Cumbres Observatory Gravitational-wave Follow-up in the Third and Fourth Observing Runs: Strengths and Weaknesses of a Rapid Response Galaxy Targeted Strategy

The Astrophysical Journal
We present a summary of gravitational-wave (GW) follow-up using the Las Cumbres Observatory global network of telescopes during the third (O3) and fourth (O4) observing runs of the GW detectors. As in O2, we implemented the Gehrels et al.
Ido Keinan, Iair Arcavi, D. Andrew Howell, Curtis McCully, Craig Pellegrino, Ayelet Hasson, Moira Andrews, Jamison Burke, Daichi Hiramatsu, Jennifer Barnes, Sukanya Chakrabarti, Joseph R. Farah, Paul J. Groot, Na’ama Hallakoun, Daniel Holz, Saurabh W. Jha, Daniel Kasen, Chris Lidman, Michael J. Lundquist, Dan Maoz, D. Metzger Brian, Ehud Nakar, Megan Newsome, Yuan Qi Ni, Alexander H. Nitz, Estefania Padilla Gonzalez, Tsvi Piran, Dovi Poznanski, Ryan Ridden-Harper, David J. Sand, Brian P. Schmidt, Giacomo Terreran, Brad E. Tucker, Stefano Valenti, J. Craig Wheeler, Samuel Wyatt, Kathryn Wynn   +36 more
doaj   +1 more source

Unconventional Hysteretic Charge Filling in Moiré‐Reconstructed Helical Trilayer Graphene

Advanced Science, EarlyView.
In helical trilayer graphene, sequential twisting reconstructs the moiré landscape into periodic domains separated by aperiodic boundaries. Longitudinal transport reveals sweep‐direction‐dependent hysteresis, while the Hall response traces this behavior to hysteretic charge filling at the aperiodic boundaries.
Hangyeol Park, Junhyeok Oh, Rasoul Ghadimi, Chiranjit Mondal, Yungi Jeong, Won Beom Choi, Kenji Watanabe, Takashi Taniguchi, Bohm‐Jung Yang, Joonho Jang   +9 more
wiley   +1 more source

Machine‐Learning‐Enhanced Printed Vertical Magnetoresistive Sensors for Transparent, Flexible, Multimodal Interactive Magnetoelectronics

Advanced Science, EarlyView.
This study presents printed magnetoresistive sensors with a vertically aligned architecture that enables high optical transparency and mechanical flexibility. By integrating deep learning for the analysis of complex spatiotemporal signal patterns, the system further achieves intelligent multimodal interaction capabilities.
Rui Xu, Guannan Mu, Oleksandr V. Pylypovskyi, Qihao Zhang, Rico Illing, René Hübner, Ran He, Andreas Knüpfer, Sebastian Lehmann, Olha Bezsmertna, Kornelius Nielsch, Denys Makarov   +11 more
wiley   +1 more source

Rates and Beaming Angles of Gamma-Ray Bursts Associated with Compact Binary Coalescences

The Astrophysical Journal Letters
Some, if not all, binary neutron star (BNS) coalescences, and a fraction of neutron star–black hole (NSBH) mergers, are thought to produce sufficient mass ejection to power gamma-ray bursts (GRBs).
Shasvath J. Kapadia, Dimple, Dhruv Jain, Kuntal Misra, K. G. Arun, Resmi Lekshmi   +5 more
doaj   +1 more source

Direct Observation of Vortex Liquid Droplets in the Iron Pnictide Superconductor CaKFe4As4 at 0.5Tc

Advanced Science, EarlyView.
Vortex matter in the iron‐based superconductor CaKFe4As4${\rm CaKFe}_4{\rm As}_4$ is visualized at the nanoscale, revealing the unexpected emergence of vortex‐liquid droplets far below the critical temperature. These localized fluctuating regions coexist with a vortex solid, demonstrating that dissipation‐related dynamics arise well before macroscopic ...
Óscar Bou Marqués, Jose A. Moreno, Pablo García Talavera, Mingyu Xu, Juan Schmidt, Sergey L. Bud'ko, Paul C. Canfield, Isabel Guillamón, Edwin Herrera, Hermann Suderow   +9 more
wiley   +1 more source

The Internet Telescope: Remote Observing for the City Astronomy Class [PDF]

, 2004
The Latin School of Chicago is a college preparatory day school that involves its students in a number of astronomy initiatives. Here we report on our high school students’ use of the New Mexico Skies Internet telescope.
Winters, Wayne, Gehret, Lor, Coberly, Steven   +2 more
core  

<italic>100 Years of Observational Astronomy and Astrophysics. Homage to Miklós Konkoly Thege,</italic> edited by Christiaan Sterken & John B. Hearnshaw [PDF]

, 2003
Wayne Orchiston
openalex   +1 more source

Plaid‐Like Spin Splitting and Chirality of Magnon Bands in Antiferromagnetic MnTe2

Advanced Science, EarlyView.
Helicity‐ and angle‐resolved Raman spectroscopy reveals chiral magnons in the non‐coplanar antiferromagnet MnTe 2. Combined with first‐principles calculations and spin‐wave theory, the results establish its altermagnetic character through circular Raman dichroism, reduced rotational symmetry, and a distinctive plaid‐like momentum‐space magnon spin ...
Dirk Wulferding, Daehyeon An, Jiwon Choi, Dongmin Moon, Youngsu Choi, Sivasakthi Kuppusamy, Sritharan Krishnamoorthi, Raman Sankar, Myung Joon Han, Se Kwon Kim, Kwang‐Yong Choi   +10 more
wiley   +1 more source

Extragalactic astronomy and cosmology: an introduction [PDF]

, 2015
Accounting for the astonishing developments in the field of Extragalactic Astronomy and Cosmology, this second edition has been updated and substantially expanded.
Schneider, Peter
core   +1 more source