Applied Magnetic Resonance

, Volume 35, Issue 3, pp 449–458 | Cite as

1H and 19F NMR relaxation time studies in (NH4)2ZrF6 superionic conductor

  • K. J. Mallikarjunaiah
  • K. P. Ramesh
  • Ramakrishna Damle
Article

Abstract

1H and 19F spin-lattice relaxation times in polycrystalline diammonium hexafluorozirconate have been measured in the temperature range of 10–400 K to elucidate the molecular motion of both cation and anion. Interesting features such as translational diffusion at higher temperatures, molecular reorientational motion of both cation and anion groups at intermediate temperatures and quantum rotational tunneling of the ammonium group at lower temperatures have been observed. Nuclear magnetic resonance (NMR) relaxation time results correlate well with the NMR second moment and conductivity studies reported earlier.

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Copyright information

© Springer 2009

Authors and Affiliations

  • K. J. Mallikarjunaiah
    • 1
  • K. P. Ramesh
    • 2
  • Ramakrishna Damle
    • 1
    • 3
  1. 1.Department of PhysicsBangalore UniversityBangaloreIndia
  2. 2.Department of PhysicsIndian Institute of ScienceBangaloreIndia
  3. 3.Department of PhysicsBangalore UniversityBangaloreIndia

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