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Ammonium ion dynamics in NH4Br at high pressure - type of reorientation |
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| Authors: | J Wasicki D P Kozlenko S Lewicki R Goc B N Savenko |
| Institution: | 1. Faculty of Physics , Adam Mickiewicz University , Umultowska 85, 61-614, Poznań, Poland;2. Frank Laboratory of Neutron Physics, JINR , 141980, Dubna, Moscow Region, Russia |
| Abstract: | Abstract Proton NMR relaxation measurements were performed for ammonium bromide at pressures up to 800 MPa. The correlation functions for ammonium ion reorientation were calculated by Monte Carlo method. Knowledge of these functions allow calculation of the NMR relaxation times T1. Comparison between experimental and calculated values of relaxation times gives some insight into the model of ammonium ion reorientation. |
| Keywords: | High pressure NMR relaxation Monte Carlo |