6533b820fe1ef96bd127988b
RESEARCH PRODUCT
Computed positron lifetimes in vacancies and vacancy-iron clusters in gold
C. CorbelMartti J. PuskaRisto M. Nieminensubject
AnnihilationCondensed Matter::OtherChemistryGeneral EngineeringMetalCondensed Matter::Materials SciencePositronTransition metalImpurityvisual_artVacancy defectPhysics::Atomic and Molecular Clustersvisual_art.visual_art_mediumCluster (physics)Physics::Accelerator PhysicsAtomic physicsPositron annihilationdescription
Abstract Annihilation characteristics are calculated for positrons trapped in clean and impurity decorated vacancy clusters in Au. The positron lifetime depends strongly on the structure of the clusters. In a strongly relaxed vacancy cluster, the lifetime can become smaller than the lifetime in a single vacancy. The substitution of some neighbour atoms of a vacancy cluster by Fe atoms has only a minor effect on the positron lifetimes.
| year | journal | country | edition | language |
|---|---|---|---|---|
| 1983-01-01 | Radiation Effects |