Proton-lattice relaxation in NH 4 MF 3 This article has been downloaded from IOPscience. Please scroll down to see the full text article. 1989 J. Phys.: Condens. Matter 1 1119 (http://iopscience.iop.org/0953-8984/1/6/010) Download details: IP Address: 155.210.93.21 The article was downloaded on 27/01/2010 at 20:43 Please note that terms and conditions apply. The Table of Contents and more related content is available HOME | SEARCH | PACS & MSC | JOURNALS | ABOUT | CONTACT US