Matches in SemOpenAlex for { <https://semopenalex.org/work/W4381827229> ?p ?o ?g. }
Showing items 1 to 79 of
79
with 100 items per page.
- W4381827229 abstract "Understanding the microscopic spatio-temporal dynamics of nonequilibrium charge carriers in heterosystems promises optimization of process and device design towards desired energy transfer. Hot electron transport is governed by scattering with other electrons, defects, and bosonic excitations. Analysis of the energy dependence of scattering pathways and identification of diffusive, super-diffusive, and ballistic transport regimes are current challenges. We determine in femtosecond time-resolved two-photon photoelectron emission spectroscopy the energy-dependent change of the electron propagation time through epitaxial Au/Fe(001) heteostructures as a function of Au layer thickness for energies of 0.5 to unit[2.0]{eV} above the Fermi energy. We describe the laser-induced nonequilibrium electron excitation and injection across the Fe/Au interface using real-time time-dependent density functional theory and analyze the electron propagation through the Au layer by microscopic electron transport simulations. We identify ballistic transport of minority electrons at energies with a nascent, optically excited electron population which is determined by the combination of photon energy and the specific electronic structure of the material. At lower energy, super-diffusive transport with 1 to 4 scattering events dominates. The effective electron velocity accelerates from 0.3 to unit[1]{nm/fs} with an increase in the Au layer thickness from 10 to 100~nm. This phenomenon is explained by electron transport that becomes preferentially aligned with the interface normal for thicker Au layers, which facilitates electron momentum / energy selection by choice of the propagation layer thickness." @default.
- W4381827229 created "2023-06-24" @default.
- W4381827229 creator A5014166510 @default.
- W4381827229 creator A5022836726 @default.
- W4381827229 creator A5030546979 @default.
- W4381827229 creator A5033393586 @default.
- W4381827229 creator A5038756163 @default.
- W4381827229 creator A5043659159 @default.
- W4381827229 creator A5047498737 @default.
- W4381827229 creator A5057481702 @default.
- W4381827229 creator A5068103398 @default.
- W4381827229 creator A5075439006 @default.
- W4381827229 creator A5077183726 @default.
- W4381827229 creator A5079055711 @default.
- W4381827229 date "2023-06-22" @default.
- W4381827229 modified "2023-09-26" @default.
- W4381827229 title "Spatio-Temporal Electron Propagation Dynamics in Au/Fe/MgO(001) in nonequilibrium: Revealing Single Scattering Events and the Ballistic Limit" @default.
- W4381827229 doi "https://doi.org/10.48550/arxiv.2306.12777" @default.
- W4381827229 hasPublicationYear "2023" @default.
- W4381827229 type Work @default.
- W4381827229 citedByCount "0" @default.
- W4381827229 crossrefType "posted-content" @default.
- W4381827229 hasAuthorship W4381827229A5014166510 @default.
- W4381827229 hasAuthorship W4381827229A5022836726 @default.
- W4381827229 hasAuthorship W4381827229A5030546979 @default.
- W4381827229 hasAuthorship W4381827229A5033393586 @default.
- W4381827229 hasAuthorship W4381827229A5038756163 @default.
- W4381827229 hasAuthorship W4381827229A5043659159 @default.
- W4381827229 hasAuthorship W4381827229A5047498737 @default.
- W4381827229 hasAuthorship W4381827229A5057481702 @default.
- W4381827229 hasAuthorship W4381827229A5068103398 @default.
- W4381827229 hasAuthorship W4381827229A5075439006 @default.
- W4381827229 hasAuthorship W4381827229A5077183726 @default.
- W4381827229 hasAuthorship W4381827229A5079055711 @default.
- W4381827229 hasBestOaLocation W43818272291 @default.
- W4381827229 hasConcept C120665830 @default.
- W4381827229 hasConcept C121332964 @default.
- W4381827229 hasConcept C147120987 @default.
- W4381827229 hasConcept C167735695 @default.
- W4381827229 hasConcept C184779094 @default.
- W4381827229 hasConcept C191486275 @default.
- W4381827229 hasConcept C192562407 @default.
- W4381827229 hasConcept C192683347 @default.
- W4381827229 hasConcept C26057338 @default.
- W4381827229 hasConcept C26873012 @default.
- W4381827229 hasConcept C41999313 @default.
- W4381827229 hasConcept C520434653 @default.
- W4381827229 hasConcept C62520636 @default.
- W4381827229 hasConcept C74859849 @default.
- W4381827229 hasConceptScore W4381827229C120665830 @default.
- W4381827229 hasConceptScore W4381827229C121332964 @default.
- W4381827229 hasConceptScore W4381827229C147120987 @default.
- W4381827229 hasConceptScore W4381827229C167735695 @default.
- W4381827229 hasConceptScore W4381827229C184779094 @default.
- W4381827229 hasConceptScore W4381827229C191486275 @default.
- W4381827229 hasConceptScore W4381827229C192562407 @default.
- W4381827229 hasConceptScore W4381827229C192683347 @default.
- W4381827229 hasConceptScore W4381827229C26057338 @default.
- W4381827229 hasConceptScore W4381827229C26873012 @default.
- W4381827229 hasConceptScore W4381827229C41999313 @default.
- W4381827229 hasConceptScore W4381827229C520434653 @default.
- W4381827229 hasConceptScore W4381827229C62520636 @default.
- W4381827229 hasConceptScore W4381827229C74859849 @default.
- W4381827229 hasLocation W43818272291 @default.
- W4381827229 hasOpenAccess W4381827229 @default.
- W4381827229 hasPrimaryLocation W43818272291 @default.
- W4381827229 hasRelatedWork W1594647658 @default.
- W4381827229 hasRelatedWork W1989916277 @default.
- W4381827229 hasRelatedWork W1991538508 @default.
- W4381827229 hasRelatedWork W2004846721 @default.
- W4381827229 hasRelatedWork W2049453396 @default.
- W4381827229 hasRelatedWork W2372953408 @default.
- W4381827229 hasRelatedWork W2998384746 @default.
- W4381827229 hasRelatedWork W3213928901 @default.
- W4381827229 hasRelatedWork W4297316269 @default.
- W4381827229 hasRelatedWork W4321641381 @default.
- W4381827229 isParatext "false" @default.
- W4381827229 isRetracted "false" @default.
- W4381827229 workType "article" @default.