Goyal, P. S. ; Dasannacharya, B. A. (1979) Neutron scattering from ammonium salts. I. Coexisting phases in NH4I and NH4+ dynamics in phase I and II Journal of Physics C: Solid State Physics, 12 (2). pp. 209-217. ISSN 0022-3719
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Official URL: http://iopscience.iop.org/0022-3719/12/2/009
Related URL: http://dx.doi.org/10.1088/0022-3719/12/2/009
Abstract
Neutron quasi-elastic and elastic scattering experiments from NH4I are reported in the temperature range 213K-300K. It is shown that both while cooling and heating, one obtains an NaCl phase coexisting with low-temperature phases. This calls for great care in interpreting any data on NH4I in this temperature range. The reorientation times for NH4+ ions in the CsCl phase are determined. In the NaCl phase it is shown that a simple rotational diffusion model does not describe NH4+ reorientations properly.
| Item Type: | Article |
|---|---|
| Source: | Copyright of this article belongs to Institute of Physics Publishing. |
| ID Code: | 10152 |
| Deposited On: | 03 Nov 2010 04:27 |
| Last Modified: | 28 May 2011 07:18 |
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