Results 51 to 60 of about 401,472 (327)

Large Anomalous and Topological Hall Effect and Nernst Effect in a Dirac Kagome Magnet Fe3Ge

open access: yesAdvanced 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

Long-lived biνo at the LHC

open access: yesJournal of High Energy Physics, 2021
We examine the detection prospects for a long-lived biνo, a pseudo-Dirac bino which is responsible for neutrino masses, at the LHC and at dedicated long-lived particle detectors.
Julia Gehrlein, Seyda Ipek
doaj   +1 more source

Ground-based detectors in very-high-energy gamma-ray astronomy [PDF]

open access: yes, 2015
Following the discovery of the cosmic rays by Victor Hess in 1912, more than 70 years and numerous technological developments were needed before an unambiguous detection of the first very-high-energy gamma-ray source in 1989 was made.
de Naurois, M., Mazin, D.
core   +4 more sources

Ion‐Selective Microporous Membranes via One‐Step Copolymerization Enable High‐Performance Redox Flow Batteries

open access: yesAdvanced 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

The Filament Rift: ΛCDM’s Structural Challenge against Observation

open access: yesThe Astrophysical Journal
This study presents the first extended comparison of cosmic filaments identified in Sloan Digital Sky Survey (SDSS) DR10 observations ( z  
Saeed Tavasoli, Parsa Ghafour
doaj   +1 more source

Highlights from the Telescope Array

open access: yesEPJ Web of Conferences, 2016
The Telescope Array measures the properties of ultra high energy cosmic ray induced extensive air showers. We do this using a variety of techniques including an array of scintillator detectors to sample the footprint of the air shower when it reaches the
Matthews J.N.
doaj   +1 more source

Synthesis and Electronic Structure of the Fractionally Occupied Double Perovskite EuTa2O6 with Ordered Europium Vacancies

open access: yesAdvanced Functional Materials, EarlyView.
Two‐dimensional electronic states are the foundation of modern semiconductor technology. Here, we report molecular‐beam epitaxy growth of fractional double perovskite, EuTa2O6. Reciprocal space mapping and transmission electron microscopy confirm a layered ordering of A‐site cations.
Tobias Schwaigert   +15 more
wiley   +1 more source

Intersecting surface defects and instanton partition functions

open access: yesJournal of High Energy Physics, 2017
We analyze intersecting surface defects inserted in interacting four-dimensional N = 2 $$ \mathcal{N}=2 $$ supersymmetric quantum field theories. We employ the realization of a class of such systems as the infrared fixed points of renormalization group ...
Yiwen Pan, Wolfger Peelaers
doaj   +1 more source

The CAT Imaging Telescope for Very-High-Energy Gamma-Ray Astronomy [PDF]

open access: yes, 1998
The CAT (Cherenkov Array at Themis) imaging telescope, equipped with a very-high-definition camera (546 fast phototubes with 0.12 degrees spacing surrounded by 54 larger tubes in two guard rings) started operation in Autumn 1996 on the site of the former
A. Barrau   +60 more
core   +3 more sources

Defects Dynamic in Photo‐Excited CeO2 and their Influence on CO2 Photoreduction

open access: yesAdvanced 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

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