Results 31 to 40 of about 625,053 (333)

Slater-Pauling behavior and origin of the half-metallicity of the full-Heusler alloys [PDF]

open access: yes, 2002
Using the full-potential screened Korringa-Kohn-Rostoker method we study the full-Heusler alloys based on Co, Fe, Rh, and Ru. We show that many of these compounds show a half-metallic behavior; however, in contrast to the half-Heusler alloys the energy ...
I. Galanakis   +2 more
semanticscholar   +1 more source

The evolution of the mass-metallicity relation and its scatter in IllustrisTNG [PDF]

open access: yesMonthly notices of the Royal Astronomical Society, 2017
The coevolution of galaxies and their metal content serves as an important test for galaxy feedback models. We analyze the distribution and evolution of metals within the IllustrisTNG simulation suite with a focus on the gas-phase mass-metallicity ...
P. Torrey   +10 more
semanticscholar   +1 more source

“Direct” Gas-phase Metallicity in Local Analogs of High-redshift Galaxies: Empirical Metallicity Calibrations for High-redshift Star-forming Galaxies [PDF]

open access: yesAstrophysical Journal, 2018
We study the direct gas-phase oxygen abundance using the well-detected auroral line [O iii]λ4363 in the stacked spectra of a sample of local analogs of high-redshift galaxies.
F. Bian, L. Kewley, M. Dopita
semanticscholar   +1 more source

Metal Metal

open access: yesArtilugio, 2023
METAL METAL es una pieza electroacústica creada en 2022. El material sonoro utilizado en la composición fue grabado durante la pandemia mundial de Covid-19. Aprovechando el aislamiento obligatorio, se realizaron sesiones de improvisación rítmica, tímbrica y textural con latas de aluminio. Estas se registraron con un grabador digital Zoom H4.
openaire   +1 more source

Metallic hydrogen [PDF]

open access: yesJournal of Physics: Condensed Matter, 2018
For over eighty years, scientists have been trying to produce lab-made metallic hydrogen, the holy grail of alternative fuels. In that process, diamond anvils must withstand pressures greater than those at the center of the earth—no mean feat. Recent research may have finally achieved hydrogen’s metallic state.
Ranga Dias, Isaac Silvera
openaire   +2 more sources

Photometric Metallicity and Distance Estimates for ∼136,000 RR Lyrae Stars from Gaia Data Release 3

open access: yesThe Astrophysical Journal, 2023
We present a sample of 135,873 RR Lyrae stars (RRLs) with precise photometric metallicity and distance estimates from our newly calibrated P – ϕ _31 – R _21 –[Fe/H]/ P – R _21 –[Fe/H] and G -band absolute magnitude–metallicity relations.
Xin-Yi Li   +4 more
doaj   +1 more source

Merging black hole binaries: the effects of progenitor's metallicity, mass-loss rate and Eddington factor [PDF]

open access: yes, 2017
The first four gravitational wave events detected by LIGO were all interpreted as merging black hole binaries (BHBs), opening a new perspective on the study of such systems. Here we use our new population-synthesis code MOBSE, an upgraded version of BSE (
N. Giacobbo, M. Mapelli, M. Spera
semanticscholar   +1 more source

Spintronic phase transition of graphene/BN/graphene van de Waals heterostructures

open access: yesResults in Physics, 2022
Based on a single-orbital tight-binding (TB) Hubbard model under mean-field approximation, we study band structure and half-metallicity of zigzag graphene/boron nitride/graphene (Z-G/BN/G) trilayer nanoribbon systems.
Quanyuan Cao, Lei Xu, Jun Zhang
doaj   +1 more source

Metallicity evolution of AGNs from UV emission-lines based on a new index [PDF]

open access: yes, 2014
We analyzed the evolution of the metallicity of the gas with the redshift for a sample of AGNs in a very wide redshift range ...
Cardaci, Monica V.   +3 more
core   +2 more sources

Metallicity-dependent signatures in the Kepler planets [PDF]

open access: yesMonthly notices of the Royal Astronomical Society, 2018
Using data from the California-Kepler-Survey (CKS) we study trends in planetary properties with host star metallicity for close-in planets. By incorporating knowledge of the properties of the planetary radius gap identified by the CKS survey, we are able
J. Owen, R. Murray-Clay
semanticscholar   +1 more source

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