Results 51 to 60 of about 157,868 (337)
Low‐Symmetry Weyl Semimetals: A Path to Ideal Topological States
Advanced Functional Materials, EarlyView.This study presents a theoretical framework for realizing ideal Weyl semimetals, where Weyl nodes are well‐isolated at the Fermi level. The approach is exemplified in the low‐symmetry material Cu2SnSe3, which exhibits tunable topological phases, current‐induced orbital magnetization, and a strong circular photogalvanic effect, making it a promising ...
Darius‐Alexandru Deaconu +3 more
wiley +1 more source
A Possible Common Physics Picture Reflected by the Gamma-Ray Emission of the Galactic Center
The Astrophysical JournalLong-term observations of the Galactic center by Fermi and HESS have revealed a novel phenomenon: the high-energy gamma-ray spectrum from the gamma-ray source HESS J1745-290 exhibits a double power-law structure.
Lin Nie, Yi-Qing Guo, Si-Ming Liu
doaj +1 more source
The Shape and Scale of Galactic Rotation from Cepheid Kinematics [PDF]
, 1997 A catalog of Cepheid variables is used to probe the kinematics of the Galactic disk. Radial velocities are measured for eight distant Cepheids toward l = 300; these new Cepheids provide a particularly good constraint on the distance to the Galactic ...
Alves D. R. +19 more
core +2 more sources
Large Anomalous and Topological Hall Effect and Nernst Effect in a Dirac Kagome Magnet Fe3Ge
Advanced Functional Materials, EarlyView.Fe3Ge, a Kagome‐lattice magnet, exhibits remarkable anomalous Hall and Nernst effects, with transverse thermoelectric conductivity surpassing or comaprable to some well‐known ferromagnets. First‐principles calculations attribute these to Berry curvature from massive Dirac gaps. Additionally, topological Hall and Nernst signals emerge from field‐induced
Chunqiang Xu +11 more
wiley +1 more source
Impact of Anisotropic Cosmic-Ray Transport on the Gamma-Ray Signatures in the Galactic Center
The Astrophysical JournalThe very high energy (VHE) emission of the central molecular zone (CMZ) is rarely modeled in 3D. Most approaches describe the morphology in 1D or simplify the diffusion to the isotropic case.
J. Dörner +5 more
doaj +1 more source
Mapping the Galactic halo with main-sequence and RR Lyrae stars
EPJ Web of Conferences, 2012 We present an analysis of Galactic halo structure, substructure, and metallicity traced by main-sequence and RR Lyrae stars selected from the SDSS stripe 82 and CFHT Legacy Survey data sets.
Sesar B.
doaj +1 more source
The Astrophysical Journal Letters, 2023 We have examined the distribution of the position angle (PA) of the Galactic center filaments with lengths L > 66″ and
F. Yusef-Zadeh +3 more
doaj +1 more source
Advanced Functional Materials, EarlyView.A scalable one‐step copolymerization strategy is developed to produce low‐cost microporous ion exchange membranes that boost both the efficiency and lifespan of flow batteries. When combined with organic electrolytes in aqueous systems, these membranes enable safe and cheap flow battery energy storage, supporting the widespread integration of renewable
Jiaye Liu +7 more
wiley +1 more source
Defects Dynamic in Photo‐Excited CeO2 and their Influence on CO2 Photoreduction
Advanced Functional Materials, EarlyView.X‐ray photoelectron spectroscopy study under light excitation is presented to track the defect dynamic (Ce4+ to Ce3+) in CeO2. Surface enhanced Raman spectroscopy confirmed the key role of Ce3+ states in controlling charge and energy transfer across the CeO2‐dye molecule interface.
Rambabu Yalavarthi +3 more
wiley +1 more source
SOFIA/FORCAST Galactic Center Source Catalog
The Astrophysical JournalThe central regions of the Milky Way constitute a unique laboratory for a wide swath of astrophysical studies; consequently, the inner ∼400 pc have been the target of numerous large surveys at all accessible wavelengths.
Angela S. Cotera +15 more
doaj +1 more source