Open AccessCascade decays and final charge-state distribution of single K-vacancy and double K-vacancy magnesium ions
Author(s) -
Hu Hong-Wei,
Chenzhong Dong,
Shi Ying-Long
Publication year - 2007
Publication title -
wuli xuebao
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.199
H-Index - 47
ISSN - 1000-3290
DOI - 10.7498/aps.56.3887
Subject(s) - cascade , auger , vacancy defect , ion , atomic physics , excitation , auger effect , radiative transfer , physics , collision cascade , magnesium , charge (physics) , materials science , chemistry , condensed matter physics , nanotechnology , thin film , chromatography , quantum mechanics , sputtering , metallurgy
Based on the conclusion that the contribution of correlated decay of two vacancies in atoms is smallthe de-excitation process of Mg1+(1s-1) hollow magnesium ions with single K-vacancy and Mg2+(1s-2) double K-vacancy were treated by applying the radiative-single Auger - double Auger cascade modelRACDA. The final-charge-state distribution(FCSD) of these hollow ions were calculatedand compared with that obtained with the radiative-single Auger cascade modelRAC. The probability of tetravalent ion production via the de-excitation of Mg1+(1s-1) obtained by RACDA model is considerablebut tetravalent ion is not produced in the by RAC model. The probability of hexavalent ion production via the de-excitation of Mg2+(1s-2) obtained by RACDA model is very largebut hexavalent ion is not produced in the RAC model.