A1 Refereed original research article in a scientific journal
EFFECT OF THE GRAIN-SIZE ON THE TUNNEL DISTRIBUTION IN (NH4)2ZNCL4
Authors: LIU ZS, PUNKKINEN M, VUORIMAKI AH, YLINEN EE
Publisher: ELSEVIER SCIENCE BV
Publication year: 1994
Journal:: Physica B: Condensed Matter
Journal name in source: PHYSICA B
Journal acronym: PHYSICA B
Volume: 202
Issue: 3-4
First page : 343
Last page: 345
Number of pages: 3
ISSN: 0921-4526
DOI: https://doi.org/10.1016/0921-4526(94)90316-6
Abstract
The effect of the grain size of a polycrystalline sample on the rotational tunnelling of ammonium ions is studied in (NH4)2ZnCl4 by NMR level crossing. When a single crystal is ground to a powder of 1-2 mum grains, the width of the distribution of the tunnel splitting is observed to increase tenfold and the peak position shifts somewhat.
The effect of the grain size of a polycrystalline sample on the rotational tunnelling of ammonium ions is studied in (NH4)2ZnCl4 by NMR level crossing. When a single crystal is ground to a powder of 1-2 mum grains, the width of the distribution of the tunnel splitting is observed to increase tenfold and the peak position shifts somewhat.
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