PL EN


Preferences help
enabled [disable] Abstract
Number of results
2004 | 105 | 4 | 317-328
Article title

Long-Range Interactions and the Oscillator Strength for the 1_u, 0^+_u → X 0^+_g Transitions in Zn_2

Content
Title variants
Languages of publication
EN
Abstracts
EN
The interaction potentials for Zn_2 electronic states {1}_u and {0}_u^+ correlated with (4 {1}^P_1+4 {1}^S_0) asymptote in the long-range region (10-25) Å and the oscillator strength f for the absorption transition to these states are derived experimentally from a careful analysis of the self-broadened resonance 213.8 nm line of Zn. It is found that although the interatomic interactions at so long distances are dominated by resonance potential of the form C_3/R^3 resulting in the Lorentzian line shape, the parameter C_3 and thus f value significantly decrease with R decreasing. This effect proved to be a linear function of R^{-1} yielding the oscillator strength for the considered line f_0=1.456 ± 0.010 from R → ∞ extrapolation. This value seems to be the most accurate experimental result as yet and shows that the best theoretical values for this quantity are overestimated. It is suggested that the long-range behaviour of the potential energy curves observed here for the first time represents the effective potentials including dominating resonance interactions and a possible slight contribution of the dispersion interactions as well as the R-dependent spin-orbit interaction.
Keywords
Year
Volume
105
Issue
4
Pages
317-328
Physical description
Dates
published
2004-04
received
2004-02-17
References
  • 1. R.J. Le Roy, R.B. Bernstein, J. Chem. Phys. 52, 3869 (1970)
  • 2. R.J. Le Roy, W.-H. Lam, Chem. Phys. Lett. 71, 544 (1980)
  • 3. Ching-Hua Su, Pok-Kai Liao, Yu Huang, Shian-Shyang Liou, R.F. Brebrick, J. Chem. Phys. 81, 1 (1984)
  • 4. W. Kędzierski, J.B. Atkinson, L. Krause, Opt. Lett. 14, 607 (1989)
  • 5. W. Kędzierski, J. Supronowicz, J.B. Atkinson, W.E. Baylis, M. Couty, G. Hambaud, L. Krause, Chem. Phys. Lett. 175, 221 (1990)
  • 6. G. Rodriguez, J.G. Eden, J. Chem. Phys. 95, 5539 (1991)
  • 7. P.S. Doidge, Spectrochim. Acta B 50, 209 (1995)
  • 8. J. Szudy, W.E. Baylis, Phys. Rep. 266, 127 (1996) and references therein
  • 9. H.G. Kuhn, Philos. Mag. 18, 983 (1934); Proc. R. Soc. A 158, 212 (1937)
  • 10. H. Margenau, Phys. Rev. 48, 755 (1935); Phys. Rev. 82, 156 (1951)
  • 11. G. Herzberg, Spectra of Diatomic Molecules, 2nd ed., Van Nostrand-Reinhold, New York 1950
  • 12. T. Grycuk, L. Kowalczyk, Z. Morawski, Proc. SPIE 1711, 159 (1992)
  • 13. A.N. Nesmeyanov, Vapor Pressure of the Elements, Academic, New York 1963
  • 14. R. Hultgren, P.D. Desai, D.T. Hawkins, M. Gleiser, K.K. Kelley, Selected Values of the Thermodynamic Properties of the Elements, American Society for Metals, Metals Park, Ohio 1973
  • 15. C.E. Moore, Atomic Energy Levels, NSRDS-NDS circular, No. 467, US GPO, Washington 1958
  • 16. C.G. Carrington, D.N. Stacey, J. Cooper, J. Phys. B 6, 417 (1973)
  • 17. T. Grycuk, M. Michalicka, J. Rogaczewski, Acta Phys. Pol. A 101, 828 (2002)
  • 18. E. Czuchaj, F. Rebentrost, H. Stoll, H. Preuss, Chem. Phys. Lett. 255, 203 (1996) and references therein
  • 19. C. Bousquet, J. Phys. B 19, 3859 (1986)
  • 20. N. Bras, C. Bousquet, J. Phys. (France) 40, 945 (1979)
  • 21. D. Gebhard, W. Behmenburg, Z. Naturforsch A 30, 445 (1975)
  • 22. A. Landman, R. Novick, Phys. Rev. 134, A56 (1964)
  • 23. S.R. Baumann, W.H. Smith, J. Opt. Soc. Am. 60, 345 (1970)
  • 24. T. Andersen, G. Sorensen, J. Quant. Spectrosc. Radiat. Transfer 13, 369 (1973)
  • 25. J. Kowalski, F. Träger, Z. Phys. A 278 1, (1976)
  • 26. I. Martinson, L.J. Curtis, S. Huldt, U. Litzen, L. Lilieby, S. Mannervik, B. Jelenkovic, Phys. Scr. 19, 17 (1979)
  • 27. A. Lurio, R.L. de Zafra, R.J. Goshen, Phys. Rev. A 134, 1198 (1964)
  • 28. R. Abjean, A. Johannin-Gilles, J. Quant. Spectrosc. Radiat. Transfer 15, 25 (1975)
  • 29. C. Froese Fisher, J.E. Hansen, Phys. Rev. A 17, 1956 (1978)
  • 30. P.F. Gruzdev, A.V. Loginov, Opt. Spectrosc. (USSR) 54, 348 (1983)
Document Type
Publication order reference
YADDA identifier
bwmeta1.element.bwnjournal-article-appv105n407kz
Identifiers
JavaScript is turned off in your web browser. Turn it on to take full advantage of this site, then refresh the page.