Results 21 to 30 of about 389,998 (315)

Enhancing Emission via Radiative Lifetime Manipulation in Ultrathin InGaN/GaN Quantum Wells: The Effects of Simultaneous Electric and Magnetic Fields, Thickness, and Impurity

open access: yesNanomaterials, 2023
Ultra-thin quantum wells, with their unique charge confinement effects, are essential in enhancing the electronic and optical properties crucial for optoelectronic device optimization.
Redouane En-nadir   +8 more
doaj   +1 more source

The Effect of Fast Kr Ion Irradiation on the Optical Absorption, Luminescence, and Raman Spectra of BaFBr Crystals

open access: yesCrystals, 2023
In this work, using photoluminescence (PL), optical absorption (OA), Raman spectroscopy (RS), and atomic force microscopy (AFM), the radiation damage of BaFBr crystals irradiated with 147 MeV 84Kr ions to fluences (1010–1014) cm2 was investigated.
Abdirash Akilbekov   +8 more
doaj   +1 more source

Against the Grain and Over the Line: Reflections on Comparative Methodology

open access: yesReligions, 2018
This article distills theoretical arguments that I advance in Foreigners and Their Food, arguments relevant to a wide range of religious studies scholars.
David M. Freidenreich
doaj   +1 more source

Effect of H2O Content on the Corrosion Behavior of X52 Steel in Supercritical CO2 Streams Containing O2, H2S, SO2 and NO2 Impurities

open access: yesEnergies, 2023
In this study, the corrosion behavior of X52 pipeline steel affected by H2O content in supercritical CO2 streams containing O2, H2S, SO2 and NO2 impurities was investigated by the weight loss test and surface characterization.
Jia Liu   +8 more
doaj   +1 more source

Impurity in a Bose-Einstein Condensate and the Efimov Effect. [PDF]

open access: yesPhysical Review Letters, 2015
We investigate the zero-temperature properties of an impurity particle interacting with a Bose-Einstein condensate (BEC), using a variational wave function that includes up to two Bogoliubov excitations of the BEC.
J. Levinsen, M. Parish, G. Bruun
semanticscholar   +1 more source

Quasiparticle Properties of a Mobile Impurity in a Bose-Einstein Condensate. [PDF]

open access: yesPhysical Review Letters, 2015
We develop a systematic perturbation theory for the quasiparticle properties of a single impurity immersed in a Bose-Einstein condensate. Analytical results are derived for the impurity energy, effective mass, and residue to third order in the impurity ...
Rasmus S. Christensen   +2 more
semanticscholar   +1 more source

Transient and Fast Generation of Bose-Einstein-Condensate Macroscopic Quantum Superposition States via Impurity Catalysing

open access: yesPhotonics, 2022
Macroscopic quantum superposition is an important embodiment of the core of the quantum theory. The engineering of macroscopic quantum superposition states is the key to quantum communication and quantum computation.
Zhen Li, Wangjun Lu
doaj   +1 more source

On mechanisms of impurity leakage and retention in the tokamak divertor

open access: yesPlasma Physics and Controlled Fusion, 2019
Impurity seeding into a tokamak divertor for radiative cooling is considered as a tool for achieving detached/semi-detached regimes required to meet the condition of acceptable heat loads on divertor plates.
I. Senichenkov   +8 more
semanticscholar   +1 more source

Continuous-time Monte Carlo methods for quantum impurity models [PDF]

open access: yes, 2010
Quantum impurity models describe an atom or molecule embedded in a host material with which it can exchange electrons. They are basic to nanoscience as representations of quantum dots and molecular conductors and play an increasingly important role in ...
E. Gull   +5 more
semanticscholar   +1 more source

Potentials for Describing Interatomic Interactions in γFe-Mn-C-N System

open access: yesMetals, 2022
Potentials for describing interatomic interactions in a γFe-Mn-C-N multicomponent system, modified Hadfield steel, where face-centered cubic (f.c.c.) iron is the main component, are proposed.
Bo Lv   +4 more
doaj   +1 more source

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