The dynamics of the ZnCl4 tetrahedra in the ferroelectric lock-in phase of K2ZnCl4 was studied by means of pulsed 35Cl NQR. (nuclear quadrupole resonance) techniques. From the temperature dependence of the spin-lattice relaxation rate (1/T1Q) for each of the triplicated Cl(1) sites in the lock-in phase, it is suggested that the domain peak in the incommensurate phase arises from the ZnCl4 tetrahedral site with a negligible reorientational motion, whereas the other two sites with an activated reorientational motion lead to the phase solitons.
ASJC Scopus subject areas
- Physics and Astronomy(all)