Proton dynamics at low and high temperatures in a novel ferroelectric diammonium hypodiphosphate (NH4)2H2P2O6 (ADhP) as studied by 1H spin-lattice relaxation time and second moment of NMR line
Keywords: Solid state; Paraelectric and ferroelectric phases; Internal dynamics; Proton spin-lattice relaxation time; Proton second moment of NMR line; Complex motion; Schrödinger equation; Tunnelling splitting; Tunnelling jump;