0000000000255899

AUTHOR

Constantine Yannouleas

showing 2 related works from this author

Trianionic gold clusters

2001

Using Penning-trap experiments and a shell-correction method incorporating ellipsoidal shape deformations, we investigate the formation and stability patterns of trianionic gold clusters. Theory and ex- periment are in remarkable agreement concerning appearance sizes and electronic shell eects. In contrast to multiply cationic clusters, decay of the trianionic gold clusters occurs primarily via electron autodetach- ment and tunneling through a Coulomb barrier, rather than via ssion. PACS. 36.40.Wa Charged clusters { 36.40.Qv Stability and fragmentation of clusters { 36.40.Cg Electronic and magnetic properties of clusters

Materials scienceFragmentation (mass spectrometry)Chemical physicsElectron captureOptical physicsCoulomb barrierElectronAtomic physicsBond-dissociation energyAtomic and Molecular Physics and OpticsQuantum tunnellingIonThe European Physical Journal D
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Multiply charged metal cluster anions

2000

Formation, stability patterns, and decay channels of silver dianionic and gold trianionic clusters are investigated with Penning-trap experiments and a shell-correction method including shape deformations. The theoretical predictions pertaining to the appearance sizes and electronic shell effects are in remarkable agreement with the experiments. Decay of the multiply anionic clusters occurs predominantly by electron tunneling through a Coulomb barrier, rather than via fission, leading to appearance sizes unrelated to those of multiply cationic clusters.

Condensed Matter - Materials ScienceMaterials scienceNuclear TheoryFissionShell (structure)Cationic polymerizationGeneral Physics and AstronomyCoulomb barrierMaterials Science (cond-mat.mtrl-sci)FOS: Physical sciencesElectron530MetalNuclear Theory (nucl-th)Chemical physicsvisual_artvisual_art.visual_art_mediumCluster (physics)Physics::Atomic and Molecular ClustersPhysics - Atomic and Molecular ClustersAtomic physicsAtomic and Molecular Clusters (physics.atm-clus)Quantum tunnelling
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