Time-resolved fission in metal clusters

Time-resolved photoelectron spectroscopy of mass-selected metal-water clusters

Barriers and Deformation in Fission of Charged Metal Clusters

The influence of electronic shell effects on the barriers and channels pertaining to metal-cluster fission is studied using a shell correction method in connection with an asymmetric two-center-oscillator model potential. This approach has the advantage that the ensuing shape parametrization allows for an independent variation of the deformations of parent and daughter clusters. Results for bot...

Dissociation, Fragmentation and Fission of Simple Metal Clusters *

Dissociation, fragmentation, and fissioning processes underly physical and chemical phenomena in a variety of finite-size systems, characterized by a wide spectrum of energy scales, nature of interactions, and characteristic spatial and temporal scales. These include nuclear fission [1,2], unimolecular decay and reactions in atoms and molecules [3], and more recently dissociation and fragmentat...

Time resolved friction during dry sliding of metal on metal

In the present study, plate impact pressure±shear friction experiments are conducted to provide insight into timeresolved dry sliding characteristics of metal on metal at normal pressures of approximately 1.5 GPa, slip speeds up to 60 m/s and interfacial temperatures as high as 8008C. The plate impact friction experiments represent a signi®cant improvement over conventional dynamic friction exp...

Structure and dynamics of alkali-metal clusters and fission of highly charged clusters

A dynamical optimization of the minimum energy cluster structures of Na, K, Rb, and Cs clusters was performed using a many-body potential based on local density calculations. The energetics and vibrational analysis of the neutral clusters in the size range 8,N,310 were calculated, including the free energy as a function of the cluster size and the melting temperature. The fission process due to...