[en] Radiative lifetimes of eight odd-parity states of Pt II, in the energy range from 51 408 to 64 388 cm−1, have been measured by means of the time-resolved laser-induced-fluorescence technique. Free, singly ionized platinum ions were obtained in a laser-produced plasma and a tunable laser with 1.5 ns duration pulse was used to selectively excite the Pt+ ions. The comparison of the experimental results with relativistic Hartree-Fock calculations emphasizes the importance of valence-valence correlation and of core-polarization effects in this complex ion. A new and extensive set of calculated oscillator strengths and transition probabilities is reported in the present paper.
Disciplines :
Physics
Author, co-author :
Quinet, Pascal ; Université de Liège - ULiège > Département de physique > Physique nucléaire, atomique et spectroscopie
Palmeri, P.
Fivet, V.
Biémont, Emile ; Université de Liège - ULiège > Département de physique > Physique nucléaire, atomique et spectroscopie
Nilsson, H.
Engström, L.
Lundberg, H.
Language :
English
Title :
Laser-induced-fluorescence lifetime measurements and relativistic Hartree-Fock oscillator strength calculations in singly ionized platinum
Publication date :
2008
Journal title :
Physical Review. A, Atomic, molecular, and optical physics
ISSN :
1050-2947
eISSN :
1094-1622
Publisher :
American Physical Society, College Park, United States - Maryland
M. M. Dworetsky, P. J. Storey, and J. M. Jacobs, Phys. Scr., T 0281-1847 T8, 39 (1989).
D. S. Leckrone, S. Johansson, G. M. Wahlgren, C. R. Proffitt, and T. Brage, Phys. Scr., T 0281-1847 T65, 110 (1996).
G. Kalus, S. Johansson, G. M. Wahlgren, D. S. Leckrone, A. P. Thorne, and J. C. Brandt, Astrophys. J. ASJOAB 0004-637X 10.1086/305241 494, 792 (1998).
G. A. Kriss, G. F. Hartig, L. Armus, W. P. Blair, S. Caganoff, and L. Dressel, Astrophys. J. 377, L13 (1991). 0004-637X
T. R. Ayres, E. Jensen, and O. Engvold, Astrophys. J. 66 (Suppl.), 51 (1988). 0004-637X
J. E. Sansonetti, J. Reader, C. J. Sansonetti, and N. J. Acquista, J. Res. Natl. Inst. Stand. Technol. JRITEF 1044-677X 97, 1 (1992).
A. G. Shenstone, Philos. Trans. R. Soc. London, Ser. A PTRMAD 0962-8428 10.1098/rsta.1938.0013 237, 453 (1938).
C.E. Moore, Atomic Energy Levels, Natl. Bur. Stand. Circ. No. 467 (U.S. GPO, Washington, D.C., 1958), Vol. III.
J. Reader, N. Acquista, C. J. Sansonetti, and R. Engleman, J. Opt. Soc. Am. B JOBPDE 0740-3224 5, 2106 (1988).
J. Blaise and J.-F. Wyart, J. Res. Natl. Inst. Stand. Technol. JRITEF 1044-677X 97, 217 (1992).
J.-F. Wyart, J. Blaise, and Y. N. Joshi, Phys. Scr. PHSTBO 0031-8949 10.1088/0031-8949/52/5/009 52, 535 (1995).
A. N. Ryabtsev, J.-F. Wyart, Y. N. Joshi, A. J. J. Raassen, and P. H. M. Uylings, Phys. Scr. PHSTBO 0031-8949 10.1088/0031-8949/47/1/009 47, 45 (1993).
R. D. Cowan, The Theory of Atomic Structure and Spectra (University of California Press, Berkeley, 1981).
C. H. Corliss and W. R. Bozman, Experimental Transition Probabilities for Spectral Lines of Seventy Elements, NBS Monograph 53 (U.S. Department of Commerce, Washington, D.C., 1962).
J. Larsson, R. Zerne, and H. Lundberg, J. Phys. B 0953-4075 29, 1895 (1996).
C. G. Bergström, H. Faris, G. W. Hallstadius, H. Lundberg, H. Persson, and A. Wahlström, Z. Phys. D: At., Mol. Clusters ZDACE2 0178-7683 10.1007/BF01384519 8, 17 (1988).
H. L. Xu, A. Persson, S. Svanberg, K. Blagoev, G. Malcheva, V. Pentchev, E. Biémont, J. Campos, M. Ortiz, and R. Mayo, Phys. Rev. A PLRAAN 1050-2947 10.1103/PhysRevA.70.042508 70, 042508 (2004).
P. Quinet, P. Palmeri, I. Biémont, M. M. McCurdy, G. Rieger, E. H. Pinnington, J. E. Lawler, and M. E. Wickliffe, Mon. Not. R. Astron. Soc. MNRAA4 0035-8711 10.1046/j.1365-8711.1999.02689.x 307, 934 (1999).
S. Fraga, J. Karwowski, and K. M. S. Saxena, Handbook of Atomic Data (Elsevier, Amsterdam, 1976).
E. A. Den Hartog, M. T. Herd, J. E. Lawler, C. Sneden, J. J. Cowan, and T. C. Beers, Astrophys. J. ASJOAB 0004-637X 10.1086/426381 619, 639 (2005).
A more extensive table is available in the DESIRE database (DatabasE on the SIxth Row Elements) at the following address: http://www.umh.ac.be/~astro/ desire.shtml
