Results 41 to 50 of about 198,178 (161)

Influence of gold atoms on the structure of Cu-Au nanoparticles at simulation of the process of gas-phase synthesis

open access: yesФизико-химические аспекты изучения кластеров, наноструктур и наноматериалов, 2022
The article considers the process of formation of binary Cu-Au nanoclusters with different target composition from a high-temperature gaseous medium. The molecular dynamics method was used. The main attention was paid to studying formation of the crystal
Yu.Ya. Gafner, D.A. Ryzhkova
doaj   +1 more source

Constructive proof of localization in the Anderson tight binding model [PDF]

open access: yesCommunications in Mathematical Physics, 1985
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Fröhlich, J.   +3 more
openaire   +6 more sources

Nonsmooth and level-resolved dynamics illustrated with a periodically driven tight binding model

open access: yesScienceOpen Research, 2014
We point out that in the first order time-dependent perturbation theory, the transition probability may behave nonsmoothly in time and have kinks periodically.
Masudul Haque
doaj   +1 more source

Localized Wannier function based tight-binding models for two-dimensional allotropes of bismuth

open access: yesNew Journal of Physics, 2021
With its monoelemental composition, various crystalline forms and an inherently strong spin–orbit coupling, bismuth has been regarded as an ideal prototype material to expand our understanding of topological electronic structures.
Qile Li   +6 more
doaj   +1 more source

Quantum diffusion of Dirac fermions in a tight-binding model

open access: yesAPL Quantum
In this work, we develop a time-dependent mathematical model to investigate the wave packet evolution of both massive and massless Dirac fermions in a tight-binding lattice.
M. Cruz-Méndez, H. Cruz
doaj   +1 more source

Electric Transport of Nodal Line Semimetals in Single-Component Molecular Conductors

open access: yesCrystals, 2020
We examine an effect of acoustic phonon scattering on the electric conductivity of a single-component molecular conductor [Pd(dddt)2] (dddt = 5,6-dihydro-1,4-dithiin-2,3-dithiolate) with a half-filled band by applying the previous calculation in a two ...
Yoshikazu Suzumura   +2 more
doaj   +1 more source

Finite temperature magnon spectra in yttrium iron garnet from a mean field approach in a tight-binding model

open access: yesNew Journal of Physics, 2018
We study magnon spectra at finite temperature in yttrium iron garnet using a tight-binding model with nearest-neighbor exchange interaction. The spin reduction due to thermal magnon excitation is taken into account via the mean field approximation to the
Ka Shen
doaj   +1 more source

Polarization-resolved analysis of high-order harmonic generation in monolayer MoS2

open access: yesNew Journal of Physics, 2020
We employ a theoretical model based on the density-matrix equation in the velocity gauge to calculate high harmonic generation from monolayer MoS _2 .
Candong Liu   +3 more
doaj   +1 more source

The Behavior of Magnetic Properties in the Clusters of 4d Transition Metals

open access: yesMolecules, 2018
The current focus of material science researchers is on the magnetic behavior of transition metal clusters due to its great hope for future technological applications.
Habte Berry, Baolin Wang, Qinfang Zhang
doaj   +1 more source

Superconducting dome driven by intervalley phonon scattering in monolayer MoS2

open access: yesNew Journal of Physics, 2020
We combine first-principles calculations, a three-band tight-binding model, and Bardeen–Cooper–Schrieffer theory to explore the physical mechanism for a dome-shaped dependence of superconducting transition temperature of monolayer MoS _2 on electron ...
Xiang-Long Yu, Jiansheng Wu
doaj   +1 more source

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