Cascade decays and final charge-state distribution of single K-vacancy and double K-vacancy magnesium ions | Zendy

Hu Hong-Wei | Zendy; Chenzhong Dong | Zendy; Shi Ying-Long | Zendy

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Cascade 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 -

acta physica sinica

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.

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