中国物理B ›› 2005, Vol. 14 ›› Issue (9): 1792-1798.doi: 10.1088/1009-1963/14/9/018

• ATOMIC AND MOLECULAR PHYSICS • 上一篇    下一篇

Theoretical studies on the photoionization cross-sections of solid silver

马晓光1, 孙卫国2   

  1. (1)Department of Physics, Yantai Normal University,Yantai 264025, China; (2)Institute of Atomic and Molecular Physics, Sichuan University, Chengdu 610065, China
  • 收稿日期:2005-03-15 修回日期:2005-04-14 出版日期:2005-09-20 发布日期:2005-09-20
  • 基金资助:
    Project supported by the National Natural Science Foundation of China (Grant No 10474068) and the Natural Science Foundation of Yantai Normal University (Grant No 22270301).

Theoretical studies on the photoionization cross-sections of solid silver

Ma Xiao-Guang (马晓光)a, Sun Wei-Guo (孙卫国)b   

  1. a Department of Physics, Yantai Normal University,Yantai 264025, China; b Institute of Atomic and Molecular Physics, Sichuan University, Chengdu 610065, China
  • Received:2005-03-15 Revised:2005-04-14 Online:2005-09-20 Published:2005-09-20
  • Supported by:
    Project supported by the National Natural Science Foundation of China (Grant No 10474068) and the Natural Science Foundation of Yantai Normal University (Grant No 22270301).

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摘要： An alternative expression for photoionization cross-section of atoms or molecules and a dielectric influence function (DIF) in a high-density system proposed recently are used to study the photoionization cross-sections of solid silver. It is suggested that a density turning point (DTP) of a photoionized system may be viewed as the critical point where the photoionization properties of atoms in a real system may have a notable change. The results show that the present theoretical photoionization cross-sections are in good agreement with the experimental results of a silver crystal both in structure and in magnitude.

Abstract: An alternative expression for photoionization cross-section of atoms or molecules and a dielectric influence function (DIF) in a high-density system proposed recently are used to study the photoionization cross-sections of solid silver. It is suggested that a density turning point (DTP) of a photoionized system may be viewed as the critical point where the photoionization properties of atoms in a real system may have a notable change. The results show that the present theoretical photoionization cross-sections are in good agreement with the experimental results of a silver crystal both in structure and in magnitude.

Key words: photoionization cross-section, solid silver, dielectric constant

中图分类号:  (Photoionization of atoms and ions)

  • 32.80.Fb
34.10.+x (General theories and models of atomic and molecular collisions and interactions (including statistical theories, transition state, stochastic and trajectory models, etc.)) 34.50.-s (Scattering of atoms and molecules)