NMR SPIN-LATTICE RELAXATION STUDY OF CS1-X(NH4)(X)H2PO4

Authors
MESCHIA SC ZIDANSEK A BRANDT D SCHMIDT VH
Citation
Sc. Meschia et al., NMR SPIN-LATTICE RELAXATION STUDY OF CS1-X(NH4)(X)H2PO4, Ferroelectrics, 202(1-4), 1997, pp. 167-171
Citations number
4
Categorie Soggetti
Physics, Condensed Matter","Material Science
Journal title
Ferroelectrics → ACNP
ISSN journal
00150193
Volume
202
Issue
1-4
Year of publication
1997
Pages
167 - 171
Database
ISI
SICI code
0015-0193(1997)202:1-4<167:NSRSOC>2.0.ZU;2-F
Abstract
Spin-lattice relaxation time T-1 for P-31 was measured as a function o f temperature at 28.2 MHz in a powder sample of Cs1-x(NH4)(x)H2PO4 (CA DP) crystallized from a solution with a molar ratio x = 0.2. This crys tal has the same structure as CsH2PO4 (CDP), which exhibits a low-temp erature pseudo-one-dimensional ferroelectric phase transition at 159 K and a superionic transition at 504 K on heating. The measured tempera ture dependence is explained in terms of hydrogen bond dynamics.