This title appears in the Scientific Report :
2013
Please use the identifier:
http://dx.doi.org/10.1002/ctpp.201200097 in citations.
Spatially Resolved Electronic Correlations in Nanoclusters
Spatially Resolved Electronic Correlations in Nanoclusters
Recent experimental developments in the creation and diagnostic probing of metallic nanoclusters has made it possible to explore their interaction with electromagnetic radiation, thus revealing information on their electronic properties. Free electrons inside such clusters occupy a very small volume...
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Personal Name(s): | Winkel, M. (Corresponding author) |
---|---|
Gibbon, P. | |
Contributing Institute: |
Jülich Supercomputing Center; JSC |
Published in: | Contributions to plasma physics, 53 (2013) 4-5, S. 254 - 262 |
Imprint: |
Weinheim
Wiley-VCH
2013
|
DOI: |
10.1002/ctpp.201200097 |
Document Type: |
Journal Article |
Research Program: |
Pretty Efficient Parallel Coulomb Solver Computational Science and Mathematical Methods |
Publikationsportal JuSER |
Recent experimental developments in the creation and diagnostic probing of metallic nanoclusters has made it
possible to explore their interaction with electromagnetic radiation, thus revealing information on their electronic
properties. Free electrons inside such clusters occupy a very small volume so their characteristics may
exhibit significant differences to bulk matter in a similar thermodynamic state. Using high-resolution molecular
dynamics simulation, we study electronic correlations of laser-excited, sodium-like nanoclusters. To cover a
broad range from nano- to microscale, the momentum autocorrelation function is evaluated for systems ranging
from 150 to more than half a million electrons. The Coulomb force computation is accelerated by utilizing the
parallel Barnes-Hut tree code PEPC. Complex electronic resonances are found for finite-sized clusters which
do not appear in bulk systems. Analysis of these oscillation modes with a new diagnostic technique show that
these are located in different spatial regions within the clusters. |