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Hyperfine structure measurements in the ground states5 F 5,5 F 4,5 F 3 and5F2 of99Ru and101Ru with the atomic beam magnetic resonance method

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Zeitschrift für Physik

Abstract

The hyperfine structure of the four lowest levels5 F 5, 4, 3, 2 of the5 F ground state multiplet arising from the configuration 4d 7 5s in99Ru and101Ru has been studied by the atomic — beam magnetic — resonance technique. After applying corrections due to the effects of off-diagonal hyperfine mixing we obtain the following multipole interaction constants:99Ru:A(5 F 5)=−204.5514(33) MHzB(5 F 5)=27.281 (62) MHzA 5 F 4=−163.6845(36) MHzB(5 F 4)=17.455(52) MHzA 5 F 3=−135.0294(37) MHzB(5 F 3)=10.164(50) MHzA(5 F 2)=− 82.5325(27) MHzB(5 F 2)=5.457(22) MHz101Ru:A(5 F 5)=−229.2881(33) MHzB(5 F 5)=158.934(62) MHzA(5 F 4)=−183.4744(36) MHzB(5 F 4)=101.799(52) MHzA(5 F 3)=−151.3502(38) MHzB(5 F 3)=59.323(50) MHzA(5 F 2)=−92.4974(27) MHzB(5 F 2)=31.869(23) MHz. The magnetic dipole and the electric quadrupole moments of the99Ru and101Ru nuclear ground states as calculated from these constants are the following:μ I (99Ru)=−0.594(119) nmQ(99Ru)=0.077 (15) barnsμ I (101Ru)=−0.666(133)nmQ(101Ru)=0.45 (9) barns. From measurements of the Zeeman effect in the even isotope102Ru we find the followingg J -factors for the5 F ground multiplet:g J (5 F 5)=1.397741(20)g J (5 F 4)=1.347604(20)g J (5 F 3)=1.248988(20)g J (5 F 2)=1.001120(3).

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Authors and Affiliations

  1. Institut für Angewandte Physik der Universität Bonn, Deutschland

    S. Büttgenbach, M. Herschel, G. Meisel, E. Schrödl, W. Witte & W. J. Childs

  2. Argonne National Laboratory, Argonne, Illinois, USA

    W. J. Childs

Authors
  1. S. Büttgenbach
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  2. M. Herschel
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  3. G. Meisel
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  4. E. Schrödl
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  5. W. Witte
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  6. W. J. Childs
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Additional information

Supported in part by the U.S. Atomic Energy Commission.

Thanks are due to the Deutsche Forschungsgemeinschaft and to the Bundesministerium für Forschung und Technologie for financial support. The numerical calculations were performed with the computer IBM 370/165 of the Gesellschaft für Mathematik und Datenverarbeitung m.b.H. Bonn.

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Büttgenbach, S., Herschel, M., Meisel, G. et al. Hyperfine structure measurements in the ground states5 F 5,5 F 4,5 F 3 and5F2 of99Ru and101Ru with the atomic beam magnetic resonance method. Z. Physik 269, 189–193 (1974). https://doi.org/10.1007/BF01668681

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  • DOI: https://doi.org/10.1007/BF01668681

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