Advertisement

Czechoslovak Journal of Physics

, Volume 46, Supplement 4, pp 2253–2254 | Cite as

Nuclear spin diffusion and paramagnetic spin dynamics in rare earth doped phosphate glasses

  • I. P. Goudemond
  • J. M. Keartland
  • M. J. R. Hoch
  • G. A. Saunders
Amorphous Solids
  • 20 Downloads

Abstract

31P NMR measurements been used to study the dynamics of rare earth ions in heavily doped phosphate laser glasses at temperatures between 2 K and 100 K. A model has been developed which describes nuclear spin lattice relaxation and linewidth broadening in terms of coupling of the electronic and nuclear magnetic moments. At low temperatures the local fields due to the paramagnetic ions cause significant broadening of the31P resonance line. The local fields establish large regions within the samples in which nuclear spin diffusion is impossible. Electronic relaxation parameters and crystal field splittings in the rare earth ions have been inferred from the NMR relaxation data.

Keywords

Electron Paramagnetic Resonance Electronic Relaxation Nuclear Magnetic Moment Crystal Field Splitting Paramagnetic Spin 
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.

References

  1. [1]
    A Abragam and M Goldman,Nuclear Magnetism: Order and Disorder (Clarendon Press, Oxford, 1982)Google Scholar
  2. [2]
    M Goldman,Spin Temperature and Nuclear Magnetic Resonance in Solids (Oxford, Clarendon Press, 1970)Google Scholar
  3. [3]
    A Abragam and B Bleaney,Electron Paramagnetic Resonance of Transition Ions (Clarendon Press, Oxford, 1970)Google Scholar
  4. [4]
    I.P Goudemond, J.M Keartland, M.J.R Hoch and G.A Saunders, Bull. Mag. Res.17 (1995) 234Google Scholar
  5. [5]
    W.E Blumberg, Phys. Rev.119 (1960) 79CrossRefADSGoogle Scholar
  6. [6]
    D Tse and S.R Hartman, Phys. Rev. Lett.21 (1968) 511CrossRefADSGoogle Scholar
  7. [7]
    M.M Mann and L.G DeSchazer, J. Applied Phys.41(7) (1970) 2951CrossRefGoogle Scholar

Copyright information

© Institute of Physics, Acad. Sci. CR 1996

Authors and Affiliations

  • I. P. Goudemond
    • 1
  • J. M. Keartland
    • 1
  • M. J. R. Hoch
    • 1
  • G. A. Saunders
    • 2
  1. 1.Department of PhysicsUniversity of the WitwatersraudJohannesburgSouth Africa
  2. 2.School of PhysicsUniversity of BathBathUK

Personalised recommendations