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

Mallikarjunaiah, KJ and Ramesh, KP and Damle, R (2009) H-1 and F-19 NMR relaxation time studies in (NH4)(2)ZrF6 superionic conductor. In: International Conference on Modern Development of Magnetic Resonance, SEP 23-29, 2007, NW Univ Evanston.

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Abstract

H-1 and F-19 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.

Item Type:	Conference Paper
Publisher:	Springer
Additional Information:	Copyright of this article belongs to Springer.
Department/Centre:	Division of Physical & Mathematical Sciences > Physics
Date Deposited:	08 Mar 2010 12:05
Last Modified:	19 Sep 2010 05:56
URI:	http://eprints.iisc.ac.in/id/eprint/26040

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