6533b833fe1ef96bd129b705
RESEARCH PRODUCT
Star orbits in metal clusters
J. Mansikka-ahoH. NishiokaM. Manninensubject
PhysicsJelliumDegenerate energy levelsOrbit (dynamics)Density of statesWoods–Saxon potentialElectronic structureStar (graph theory)Atomic physicsQuantum numberdescription
A possibility that classical five-point star orbits play a dominant role for shell structures of large metal clusters is investigated quantum mechanically. With a soft Woods-Saxon spherical potential a signature of the five-point star orbit is found in the level densities. Quantum numbers of degenerate levels in the soft Woods-Saxon potential differ by 2 and 5 in radial nodes and angular momenta, respectively. Unlike the experimental observation the peaks in the mass spectrum are not equally spaced as a function of N 1/3 . The self-consistent jellium model does not reproduce the degeneracy associated with the five-point star orbits. It is demonstrated that by covering high-density metal clusters with a layer of a low-density metal the potential can be made softer
| year | journal | country | edition | language |
|---|---|---|---|---|
| 1993-07-15 | Physical Review B |