Refine
Has Fulltext
- no (77)
Year of publication
Document Type
- Article (77) (remove)
Language
- English (77)
Is part of the Bibliography
- yes (77)
Keywords
- nanoparticles (4)
- Lasers (3)
- Phonons (3)
- SERS (3)
- Bragg peak (2)
- Crystal lattices (2)
- Gold (2)
- HRTEM (2)
- Heterostructures (2)
- Magnetism (2)
- Thermal effects (2)
- Ultrafast X-ray diffraction (2)
- core-shell nanostructure (2)
- gold (2)
- gold nanotriangles (2)
- magnetostriction (2)
- monolayer formation (2)
- surface-enhanced Raman scattering (2)
- ultrafast (2)
- ultrafast X-ray diffraction (2)
- wavelength (2)
- 4-nitrobenzenethiol (1)
- AU (1)
- Catalytic reaction (1)
- Coherent phonons (1)
- Dynamical X-ray theory (1)
- Femtosecond lasers (1)
- Gold nanoparticles (1)
- Heat diffusion (1)
- Heterogeneous catalysis (1)
- Incoherent phonons (1)
- Irradiation (1)
- LSPR (1)
- Lattice dynamics (1)
- Magnetooptical effects (1)
- Metal oxides (1)
- Molecular orientation (1)
- Monomolecular reaction (1)
- N-temperature model (1)
- Nanoparticles (1)
- Perovskites (1)
- Photoexcitations (1)
- Raman spectroscopy (1)
- Reaction mechanism (1)
- SEM (1)
- Silicon (1)
- Strain measurement (1)
- Surface enhanced Raman scattering (SERS) (1)
- Surface-enhanced Raman scattering (1)
- Thermodynamic properties (1)
- Thermoelasticity (1)
- Thin films (1)
- Transition metals (1)
- Ultrafast X-rays (1)
- Ultrafast dynamics (1)
- X-ray diffraction (1)
- X-ray switching (1)
- absorption measurements (1)
- acoustic waves (1)
- aminothiophenol (1)
- bimetallic nanoparticles (1)
- catalysis (1)
- catanionic surfactant bilayer (1)
- catanionic vesicles (1)
- charge-transfer (1)
- coherent phonons (1)
- crystal growth (1)
- dimerization (1)
- enhanced raman-scattering (1)
- epitaxial layers (1)
- exciton plasmon coupling (1)
- gelatin (1)
- gold cluster (1)
- gold nanoflowers (1)
- gold nanostructures (1)
- heat diffusion (1)
- heat measurement (1)
- heterogeneous catalysis (1)
- hyaluronic acid (1)
- hybrid material (1)
- hybrid nanoparticles (1)
- layer-by-layer deposition (1)
- metal (1)
- nanoflowers (1)
- nanoscale heat transfer (1)
- nanostructures (1)
- nanotriangles (1)
- negative thermal expansion (1)
- nonequilibrium (1)
- optical pump (1)
- optical pump X-ray probe (1)
- optical-properties (1)
- phonon (1)
- phonon dispersion relations (1)
- photocatalysis (1)
- picosecond ultrasonics (1)
- pulse shortening (1)
- rare earth (1)
- sers (1)
- size (1)
- spin (1)
- strong coupling (1)
- surface deformation (1)
- terahertz waves (1)
- thin film (1)
- thin film devices (1)
- time-resolved (1)
- ultrafast photoacoustics (1)
- ultrafast x-ray diffraction (1)
- undulated nanoplatelets (1)
- x-ray diffraction (1)
We study the ultrafast electronic transport of energy in a photoexcited nanoscale Au/Fe hetero-structure by modeling the spatiotemporal profile of energy densities that drives transient strain, which we quantify by femtosecond x-ray diffraction. This flow of energy is relevant for intrinsic demagnetization and ultrafast spin transport. We measured lattice strain for different Fe layer thicknesses ranging from few atomic layers to several nanometers and modeled the spatiotemporal flow of energy densities. The combination of a high electron-phonon coupling coefficient and a large Sommerfeld constant in Fe is found to yield electronic transfer of nearly all energy from Au to Fe within the first hundreds of femtoseconds.