Results 1 to 10 of about 13,141 (117)
Frontiers in Physics, 2023 A compact high-flux, short-pulse neutron source would have applications from nuclear astrophysics to cancer therapy. Laser-driven neutron sources can achieve fluxes much higher than spallation and reactor neutron sources by reducing the volume and time ...
X. Jiao +25 more
doaj +1 more source
Theory study of H2O adsorbed TiO2 (110) surface: structural and electronic properties [PDF]
MATEC Web of Conferences, 2022 There are three main crystal forms of TiO2 in nature: rutile, anatase and brookite. In this paper, the GGA-PBE method of density functional theory was used to study the H2O molecules adsorbed (110) surface of these three kinds of titanium dioxide.
Zhong Siying +3 more
doaj +1 more source
Many body density of states of a system of non interacting spinless fermions
New Journal of Physics, 2023 The modeling of out-of-equilibrium many-body quantum systems requires to go beyond low-energy physics and single or few bodies densities of states. Many-body localization, presence or lack of thermalization and quantum chaos are examples of phenomena in ...
Rémi Lefèvre +2 more
doaj +1 more source
Distortion of the local density of states in a plasmonic cavity by a quantum emitter
New Journal of Physics, 2021 We investigate how the local density of states in a plasmonic cavity changes due to the presence of a distorting quantum emitter. To this end, we use first-order scattering theory involving electromagnetic Green’s function tensors for the bare cavity ...
Alvaro Cuartero-González +2 more
doaj +1 more source
Origin of Magnetism in γ-FeSi2/Si(111) Nanostructures
Nanomaterials, 2021 Magnetism has recently been observed in nominally nonmagnetic iron disilicide in the form of epitaxial γ-FeSi2 nanostructures on Si(111) substrate. To explore the origin of the magnetism in γ-FeSi2/Si(111) nanostructures, we performed a systematic first ...
Liwei D. Geng +4 more
doaj +1 more source
Direct Prediction of Phonon Density of States With Euclidean Neural Networks
Advanced Science, 2021 Machine learning has demonstrated great power in materials design, discovery, and property prediction. However, despite the success of machine learning in predicting discrete properties, challenges remain for continuous property prediction. The challenge
Zhantao Chen +9 more
doaj +1 more source
Frontiers in Physics, 2022 Angularly resolved X-ray scattering measurements from fs-laser heated hydrogen have been used to determine the equilibration of electron and ion temperatures in the warm dense matter regime.
L. B. Fletcher +32 more
doaj +1 more source
New Canonical and Grand Canonical Density of States Techniques for Finite Density Lattice QCD
Particles, 2020 We discuss two new density of states approaches for finite density lattice QCD (Quantum Chromo Dynamics). The paper extends a recent presentation of the new techniques based on Wilson fermions, while here, we now discuss and test the case of finite ...
Christof Gattringer +2 more
doaj +1 more source
First–Principles Calculations of Band Offsets in GaAs/AlAs System [PDF]
Progress in Physics of Applied Materials, 2022 The lattice-matched system (GaAs)n/(AlAs)n superlattice is calculated for two different values of n=3 and 6 within ab initio pseudopotential density-functional theory using Quantum Espresso package of program exploiting the ultra-soft atomic ...
Seiyed Hamid Reza Shojaei +1 more
doaj +1 more source
Electron spectra in double quantum wells of different shapes
New Journal of Physics, 2022 We suggest a method for calculating electronic spectra in ordered and disordered semiconductor structures (superlattices) forming double quantum wells (QWs).
Piotr Garbaczewski +2 more
doaj +1 more source