Correlation and Relativistic Effects on the Level Structure of Negative Ions of Atoms with Half-filled p Shell

Authors

  • Gülay Günday Konan Physics Department, Faculty of Science and Art, Sakarya University
  • Leyla Özdemir Physics Department, Faculty of Science and Art, Sakarya University
  • Nurgül Gündüz Atik Physics Department, Faculty of Science and Art, Sakarya University

DOI:

https://doi.org/10.5614/j.math.fund.sci.2013.45.2.1

Keywords:

Breit-Pauli Hamiltonian, correlation and relativistic effects, electron affinity, fine-structure levels, MCHF method, negative ion.

Abstract

The level structure for negative ions (anions) of some atoms with half-filled p shell have been investigated using the multiconfiguration Hartree-Fock method with Breit-Pauli relativistic effects (MCHF+BP method). Thus, we have performed a systematic calculation including correlation and relativistic corrections for negative ions of these atomic systems. Investigations into the level structures of negative ions provide valuable insight into the fundamental problem of many-body motion. The correlation and relativistic effects in negative ions relative to neutral atoms and positive ions are greatly expected. In this work, we also discuss calculations for these effects in view of the MCHF+BP method.

References

Buckman, S.J. & Clark, C.W., Atomic Negative-Ion Resonances, Rev. Mod. Phys., 66(2), pp. 539-655, 1994.

Blondel, C., Recent Experimental Achievements with Negative Ions, Phys. Scr., T58, pp. 31-42, 1995.

Haeffler, G., Ljungblad, U., Kiyan, I.Y. & Hanstorp, D., Fine Structure of Asa^, Z. Phys. D: At., Mol. Clusters, 42, pp. 263-266, 1997.

Koga, T., Aoki, H., Garcia de la Vega, J.M. & Tatewaki, H., Atomic Ionization Potentials and Electron Affinities with Relativistic and Mass Corrections, Theor. Chem. Acc., 96, pp. 248-255, 1997.

Fischer, C.F., Brage, T. & Jnsson, P., Computational Atomic Structure, an MCHF Approach, Institute of Physics Publishing, Bristol and Philadelphia, England and USA, 1997.

Fischer, C.F., The MCHF Atomic-Structure Package, Computer Physics Communications, 128, pp. 635-636, 2000.

-zdemir, L., Atik, N. & Konan, G.G., The Fine Structure Levels for Ground States of Negative Ions of Nitrogen and Phosphorus, SAU Fen Bilimleri Enstit1/4s1/4 Dergisi- SAU Journal of Science, 17, pp. 139-146, 2013.

Biemont, E. & Quinet, P., Forbidden Lines in 6pk (k = 1-5) Configu-rations, Physica Scripta, 54, pp. 36-43, 1996.

Kramida, A.E., Atomic Energy Levels and Spectra Bibliographic Database (version 2.0), http://physics.nist.gov/Elevbib, National Insti-tute of Standards and Technology, Gaithersburg, MD., October 5, 2010, (April 16, 2013).

Andersen, T., Atomic Negative Ions: Structure, Dynamics And Collisions, Phys. Reports, 394, pp.157-313, 2004.

Feldmann, D., Rackwitz, R., Heinicke, E. & Kaiser, H.J., Photodetachment of Some Atomic Negative Ions: Pa^, Asa^, Sba^, Bia^, Tea^, Cra^, Nia^, Z. Phys. A, 282, pp. 143-148, 1977.

Lippa, T.P., Xu, S., Lyapustina, S.A., Nilles, J.M. & Bowen, K.H., Photoelectron Spectroscopy of Asa^, As2a^, As3a^, As4a^, and As5a^, J. Chem. Phys., 109, pp. 10727-10731, 1998.

Walter C.W., Gibson, N.D., Field III, R.L., Snedden, A.P., Shapiro, J.Z., Janczak, C.M. & Hanstorp, D., Electron Affinity of Arsenic and The Fine Structure of Asa^ Measured Using Infrared Photodetachment Threshold Spectroscopy, Phys. Rev. A, 80, pp. 014501 (4 pages), 2009.

Scheer, M., Haugen, H.K. & Beck, D.R., Single and Multiphoton Infrared Laser Spectroscopy of Sba^: A Case Study, Phys. Rev. Lett., 79, pp. 4104-4107, 1997.

Feigerle, C.S., Corderman, R.R. & Lineberger, W.C., Electron Affinities of B, Al, Bi, and Pb, J. Chem. Phys., 74, pp. 1513 (3 pages), 1981.

Bilodeau, R.C. & Haugen, H.K., Electron Affinity of Bi Using Infrared Laser Photodetachment Threshold Spectroscopy, Phys. Rev. A, 64, pp.024501-024503, 2001.

Andersson, P., Lindahl, A.O., Alfredsson, C., Rogstrm, L., Diehl, C., Pegg, D.J. & Hanstorp, D., The Electron Affinity of Phosphorus, J. Phys. B: At. Mol. Opt. Phys., 40, pp.4097-4107, 2007.

Downloads

Published

2013-07-01

Issue

Section

Articles