INFLUENCE OF CORE POLARIZATION ON THE ELECTRON-AFFINITY OF CA

Authors
VANDERHART HW LAUGHLIN C HANSEN JE
Citation
Hw. Vanderhart et al., INFLUENCE OF CORE POLARIZATION ON THE ELECTRON-AFFINITY OF CA, Physical review letters, 71(10), 1993, pp. 1506-1509
Citations number
22
Categorie Soggetti
Physics
Journal title
Physical review letters → ACNP
ISSN journal
00319007
Volume
71
Issue
10
Year of publication
1993
Pages
1506 - 1509
Database
ISI
SICI code
0031-9007(1993)71:10<1506:IOCPOT>2.0.ZU;2-M
Abstract
We have developed a method, based on the use of B-spline basis sets an d model potentials, for determining properties of systems with two or three electrons outside a polarizable closed-shell core. It is applied to the calculation of the electron affinity of Ca and the resulting v alue of 17.7 meV is in excellent agreement with the most recent experi ments. It is found that the dielectronic core-valence interaction redu ces the electron affinity by 39.5 meV.