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Hyperfine Interactions

, Volume 31, Issue 1–4, pp 241–245 | Cite as

Muon diffusion in Nb−H systems

  • O. Hartmann
  • E. Karlsson
  • R. Wäppling
  • A. Gustavsson-Seidel
  • D. Richter
  • R. Hempelmann
  • W. J. Kossler
  • B. Hitti
  • J. Kempton
  • W. F. Lankford
  • C. E. Stronach
Muon Diffusion

Abstract

We have studied the muon diffusion in various Nb−HX systems with 0.75<x<0.95, with special attention to the concentrations x<0.9. For x>0.9 the muon linewidth as function of temperature has a smooth behaviour and the muon mobility is strongly correlated to the hydrogen diffusion in the beta phase. The activation energy for the μ+ diffusion is 160 meV, which is lower than that for protons. At hydrogen concentrations below 0.9, the muon diffusion behaviour is more complicated, and the influence of Nb−H phase transitions is evident. The implications for the local environment of the muon are discussed.

Keywords

Hydrogen Thin Film Phase Transition Activation Energy Local Environment 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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Copyright information

© J.C. Baltzer A.G., Scientific Publishing Company 1986

Authors and Affiliations

  • O. Hartmann
    • 1
  • E. Karlsson
    • 1
  • R. Wäppling
    • 1
  • A. Gustavsson-Seidel
    • 1
  • D. Richter
    • 2
  • R. Hempelmann
    • 3
  • W. J. Kossler
    • 4
  • B. Hitti
    • 4
  • J. Kempton
    • 4
  • W. F. Lankford
    • 5
  • C. E. Stronach
    • 6
  1. 1.Dept. of PhysicsUniv. of UppsalaUppsalaSweden
  2. 2.Inst. Laue-LangevinGrenobleFrance
  3. 3.IFF KFA JülichJülichW-Germany
  4. 4.Dept. of PhysicsCollege William and MaryWilliamsburgUSA
  5. 5.Dept. of PhysicsGeorge Mason UniversityFairfaxUSA
  6. 6.Virginia State UniversityPetersburgUSA

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