| People | Locations | Statistics |
|---|---|---|
| Naji, M. |
| |
| Motta, Antonella |
| |
| Aletan, Dirar |
| |
| Mohamed, Tarek |
| |
| Ertürk, Emre |
| |
| Taccardi, Nicola |
| |
| Kononenko, Denys |
| |
| Petrov, R. H. | Madrid |
|
| Alshaaer, Mazen | Brussels |
|
| Bih, L. |
| |
| Casati, R. |
| |
| Muller, Hermance |
| |
| Kočí, Jan | Prague |
|
| Šuljagić, Marija |
| |
| Kalteremidou, Kalliopi-Artemi | Brussels |
|
| Azam, Siraj |
| |
| Ospanova, Alyiya |
| |
| Blanpain, Bart |
| |
| Ali, M. A. |
| |
| Popa, V. |
| |
| Rančić, M. |
| |
| Ollier, Nadège |
| |
| Azevedo, Nuno Monteiro |
| |
| Landes, Michael |
| |
| Rignanese, Gian-Marco |
|
Ernst, Wolfgang E.
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (17/17 displayed)
- 2023Photoemission Electron Microscopy of Blue and UV Surface Plasmons on Nanostructured Aluminum Filmscitations
- 2022Mixed-metal nanoparticlescitations
- 2021Material Properties Particularly Suited to be Measured with Helium Scattering: Selected Examples from 2D Materials, van der Waals Heterostructures, Glassy Materials, Catalytic Substrates,Topological Insulators and Superconducting Radio Frequency Materialscitations
- 2021Material properties particularly suited to be measured with helium scattering: selected examples from 2D materials, van der Waals heterostructures, glassy materials, catalytic substrates, topological insulators and superconducting radio frequency materialscitations
- 2020Helium droplet assisted synthesis of plasmonic Ag@ZnO core@shell nanoparticlescitations
- 2020Ultrashort XUV pulse absorption spectroscopy of partially oxidized cobalt nanoparticlescitations
- 2019Statics and dynamics of multivalley charge density waves in Sb(111)citations
- 2019Ultra-thin h-BN substrates for nanoscale plasmon spectroscopycitations
- 2019On the passivation of iron particles at the nanoscalecitations
- 2019The impact of swift electrons on the segregation of Ni-Au nanoalloyscitations
- 2019Effects of the Core Location on the Structural Stability of Ni-Au Core-Shell Nanoparticlescitations
- 2018Stability of Core-Shell Nanoparticles for Catalysis at Elevated Temperaturescitations
- 2017Electron-phonon coupling and surface Debye temperature of Bi2Te3(111) from helium atom scatteringcitations
- 2017Electron-phonon coupling and surface Debye temperature of Bi2Te3(111) from helium atom scatteringcitations
- 2017Thermally induced breakup of metallic nanowirescitations
- 2016Formation of bimetallic clusters in superfluid helium nanodroplets analysed by atomic resolution electron tomography
- 2016Diffusion on a topological insulator surface: H2O on Bi2Te3(111)
Places of action
| Organizations | Location | People |
|---|
article
The impact of swift electrons on the segregation of Ni-Au nanoalloys
Abstract
<p>We report on the electron beam-induced segregation of alloyed Ni-Au clusters into a Ni and Au rich phase at temperatures above the miscibility gap of a binary system. The nanoparticles, with diameters less than 10 nm, are grown fully inert in superfluid helium droplets with a Ni-Au core-shell morphology. Upon heating, the clusters are alloyed and subsequently transformed to a Janus-type morphology under irradiation with swift electrons. The underlying mechanisms are studied experimentally via in situ scanning transmission electron microscopy and theoretically via atomistic simulation techniques under consideration of elastic electron interactions. We find that the segregation kinetics is highly temperature-dependent and attribute this behavior to diffusive relaxation processes. The presented results shed light on radiation induced phenomena using clusters as a model system and suggest new routes for the synthesis of structures in nonequilibrium configurations.</p>