STOPPING POWER IN LANTHANIDES, FROM CE TO LU

J. P. PERALTA; A. M. P. MENDEZ; C. C. MONTANARI

Congreso; International Symposium on Swift Heavy Ions in Matter (SHIM) & International Conference on Atomic Collisions in Solids (ICACS); 2022

University of Helsinki, Finland

The knowledge of electronic stopping is important in many fields, from basic physics totechnology and medicine [1]. We focused on lanthanides due to its electronic complexity(open 4f-subshell, need of relativistic description [2]); the importance of rare-earth oxides [3],and discrepancies among experimental data. In this work we perform a systematic study ofthe stopping cross sections from Ce (Z=58) to Lu (Z=71). Fully relativistic atomic structurecalculations were developed for the atomic wave functions and binding energies. These valuesare the only inputs of our full theoretical calculations for bound electrons using the shellwiselocal plasma approximation [4]. Our results cover an extended energy region by consideringseparately the free electron gas (FEG) and the bound electrons as in [4].