Influence of Debye plasmas on photoionization of Li-like ions: Emergence of Cooper minima

被引：36

作者：

Lin, C. Y. ^{[1
]}

Ho, Y. K. ^{[1
]}

机构：

[1] Acad Sinica, Inst Atom & Mol Sci, Taipei 106, Taiwan

来源：

PHYSICAL REVIEW A | 2010年 / 81卷 / 03期

关键词：

ASTROPHYSICALLY ABUNDANT ELEMENTS; RECOMBINATION RATE COEFFICIENTS; CROSS-SECTIONS; COMPLEX-COORDINATE; ATOMIC DATA; ABSORPTION; RANGE; MODEL;

D O I：

10.1103/PhysRevA.81.033405

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

The photoionizaton processes of lithium isoelectronic sequence (Be+, B2+, C3+, N4+, O5+, and F6+) under the influence of plasma environments are explored using the method of complex coordinate rotation in combination with the model potential approximation. The photoionization cross sections compared to existing theoretical predictions and varied with Debye screening lengths are reported. Under the perturbation of plasmas with certain Debye screening lengths, Cooper minima are uncovered in photoionization cross-section curves of the ground-state Li-like ions, in which the Cooper minima are absent in the respective free ion cases. The relations between the appearance of Cooper minima and the instability of the ground states due to plasma environments are discussed.

引用

页数：9

共 35 条

[1] FESHBACH-MODEL POTENTIAL APPROACH FOR THE STUDY OF RESONANT AND BOUND-STATES OF BE-LIKE IONS [J].