0000000000147616
AUTHOR
M. D. Herráiz Lablanca
Laser Investigations of Stored Metal Cluster Ions
The combination of ion storage in a Penning trap and photoexcitation by pulsed lasers has proven to be a versatile instrument in metal cluster research. Recent experiments which make use of both components allow a detailed study of the clusters' properties. In particular, a new method to measure dissociation energies is reviewed and preliminary results on the competition between electron emission and neutral monomer evaporation from dianionic metal clusters are presented.
Recent gold cluster studies in a Penning trap
Abstract A progress report is given on the investigation of metal clusters with an ion cyclotron resonance (Penning) trap. The examples are taken from the recent studies on gold clusters. In particular, the monomer and dimer evaporation is monitored as a function of cluster size. For the particular case of Au 7 + this study is expanded to include the energy dependence of the branching ratio. In connection with the sequential decay of Au 8 + the information can be used for a model-free determination of the dissociation energy of Au 8 + . A second line of studies concerns the production, properties and storage behavior of polyanionic gold clusters. Such species have recently been produced by …