| Title | Unsupported nanometer-sized copper clusters studied by electron diffraction and molecular dynamics |
| Publication Type | Journal Article |
| Year of Publication | 1998 |
| Authors | Reinhard, D., Hall B.D., Berthoud P., Valkealahti S., and Monot R. |
| Journal | Physical Review B - Condensed Matter and Materials Physics |
| Volume | 58 |
| Issue | 8 |
| Pagination | 4917 - 4926 |
| Date Published | 1998 |
| ISSN | 01631829 (ISSN) |
| Abstract | An electron diffraction study on unsupported nanometer-sized copper clusters has been combined with molecular-dynamics calculations to investigate size-related structural effects. The experimental conditions allow slow cluster growth, close to thermodynamic equilibrium, in an inert-gas-aggregation source. A distinct structural change is observed, which is correlated with cluster size: there is a predominance of icosahedra below 3.8 nm in diameter, and a clear separation of size distributions for icosahedra and fee particles, which are larger. These results confirm the predictions of an earlier molecular-dynamics study. Further molecular-dynamics simulations have provided information on atomic dynamics and thermal expansion of interatomic distances and are compared with experimental data. |
| URL | http://www.scopus.com/inward/record.url?eid=2-s2.0-0001108987&partnerID=40&md5=4b258fc4e818129444f32900b18030c7 |
