Abstract
In this study argon nanoclusters (800 to ∼ 6500 atoms) formed in supersonic gas jets are compared to the nanoclusters stabilized in superfluid helium. High-energy electron and X-ray diffraction methods are utilized. Both techniques allow investigation of isolated clusters. It is shown that the theoretical prediction of the so-called multiply twinned particles with fivefold symmetry, such as icosahedra (ico) and decahedra (dec) is valid in the investigated cluster size interval. Around the point of the expected ico-to-dec size-dependent transformation at a cluster size of ∼ 2000 atoms, hexagonal ico and the statistical distribution of structures with a tendency for dec to replace ico are observed. Kinetic reasons, as well as temperature-related effects, could be responsible for the latter observations.
Original language | English (US) |
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Pages (from-to) | 156-165 |
Number of pages | 10 |
Journal | Journal of Low Temperature Physics |
Volume | 187 |
Issue number | 1-2 |
DOIs | |
State | Published - Apr 1 2017 |
All Science Journal Classification (ASJC) codes
- Atomic and Molecular Physics, and Optics
- Materials Science(all)
- Condensed Matter Physics
Keywords
- Argon nanoclusters
- Impurity-helium solids
- Multiply twinned particles
- Size-dependent transformation
- Supersonic gas jet