Correlation and relativistic effects on the photoionization of confined atoms

H. R. Varma, P. C. Deshmukh, V. K. Dolmatov, and S. T. Manson

Phys. Rev. A 76, 012711 – Published 18 July 2007

Abstract

A study of the combined effects of correlation, confinement and relativistic effects on the photoionization of the outer $n s$ subshells of the alkaline-earth-metal atoms, Mg, Ca, Sr and Ba has been performed with particular emphasis on the Cooper minima using the relativistic-random-phase approximation (RRPA) methodology. It is found that the response of the Cooper minima to these various effects can be rather different behavior for the various atoms considered. On the other hand, relativistic effects were found to be essentially obliterated by confinement, in all cases. The situations are analyzed in detail and qualitative understanding of most of the phenomenology is presented.

Received 30 May 2007

DOI:https://doi.org/10.1103/PhysRevA.76.012711

Authors & Affiliations

H. R. Varma¹, P. C. Deshmukh¹, V. K. Dolmatov², and S. T. Manson³

¹Department of Physics, Indian Institute of Technology-Madras, Chennai, Tamil Nadu 600036, India
²Department of Physics and Earth Science, University of North Alabama, Florence, Alabama 35632, USA
³Department of Physics and Astronomy, Georgia State University, Atlanta, Georgia 30303, USA

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Issue

Vol. 76, Iss. 1 — July 2007

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