Abstract
Measurements of spin-lattice relaxation time T 1 have been performed for polycrystalline ammonium iodide NH4I as a function of hydrostatic pressure and temperature. Activation parameters were obtained for different models of ammonium ion reorientations. It was found that the dominant mechanism for ammonium reorientational motion in the ordered phases III and IV was the reorientation around C3 axes. Reorientation activation volume and libration frequency of ammonium ions as a function of pressure were calculated for different phases.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
