Low-field mobilities of rare-earth metals

  • M. Laatiaoui
  • H. Backe
  • D. Habs
  • P. Kunz
  • W. Lauth
  • M. Sewtz
Regular Article


In this paper, a dedicated ion mobility spectrometer for heavy element research will be presented. Like most advanced mobility spectrometers, the presented apparatus is equipped with a mass spectrometer for isotope-selective detection. In addition, the sample atoms are ionized by exploiting the element-selective laser resonance ionization techniques. First systematic studies at various lanthanide elements have shown that their low-field mobilities in argon are quite similar. The only exception is the element gadolinium, which exhibited an 8% lower reduced mobility of 1.692(24) cm2/V s. This anomaly is assumed to be a direct consequence of occupying the d- instead of an f-orbital in singly charged gadolinium, which in turn has a significant impact on the gadolinium-argon interaction potential.


Atomic Physics 


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Copyright information

© EDP Sciences, SIF, Springer-Verlag Berlin Heidelberg 2012

Authors and Affiliations

  • M. Laatiaoui
    • 1
  • H. Backe
    • 2
  • D. Habs
    • 1
  • P. Kunz
    • 2
  • W. Lauth
    • 2
  • M. Sewtz
    • 1
  1. 1.Fakultät für Physik der Ludwig-Maximilians-Universität MünchenGarchingGermany
  2. 2.Institut für Kernphysik der Universität MainzMainzGermany

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