NMR spin-lattice relaxation study of Cs1‑x(NH4)xH2PO4
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Date
1997
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Abstract
Spin-lattice relaxation time T1 for 31P was measured as a function of temperature at 28.2 MHz in a powder sample of Cs1-x (NH4) x H2PO4 (CADP) crystallized from a solution with a molar ratio x = 0.2. This crystal has the same structure as CsH2PO4 (CDP), which exhibits a low-temperature pseudo-one-dimensional ferroelectric phase transition at 159 K and a superionic transition at 504 K on heating. The measured temperature dependence is explained in terms of hydrogen bond dynamics.
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S.C. Meschia, A. Zidansek, D. Brandt, and V.H. Schmidt, “NMR spin-lattice relaxation study of Cs1‑x(NH4)xH2PO4,” Ferroelectrics 202, 167-171 (1997).