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RESEARCH PRODUCT

Photo fragmentation of metal clusters stored in a penning trap

Clemens WaltherH.-j. KlugeK. LützenkirchenM. LindingerSt. BeckerG. DietrichJ. ZieglerLutz Schweikhard

subject

Gold clusterMaterials scienceFragmentation (mass spectrometry)Excited statePhysics::Atomic PhysicsIrradiationPhoton energyAtomic physicsPenning trapAtomic and Molecular Physics and OpticsDissociation (chemistry)Ion

description

Photo fragmentation studies of stored mass selected metal cluster ions of a large size range are reported. The experimental method and the data evaluation are described in detail. Gold cluster ions were produced by laser vaporization and stored in a Penning trap. After size selection they were electronically excited by irradiation with a pulsed laser beam. Relaxation by evaporation of neutral atoms and dimers was observed as a function of photon energy. From these data upper and lower limits for dissociation energies are determined for Aun + (n=3 to 23).

https://doi.org/10.1007/s004600050063