35Cl NQR study of phase soliton formation and residual commensurations in K2ZnCl4

Dong Keun Oh, Cheol Eui Lee, S. Y. Jeong

Research output: Contribution to journalArticle

Abstract

In order to investigate the dynamics of the ZnCl4 tetrahedra in K2ZnCl4, 35Cl nuclear quadruple resonance was employed for the spin-lattice relaxation measurements of each of the triplicated Cl sites in the lock-in phase. The temperature dependence of the spin-lattice relaxation rate (1/T1Q) indicates that the domain peak observed in the incommensurate phase arises from the ZnCl4 tetrahedral site with a negligible reorientational motion. On the other hand, an activated reorientational motion of the other two ZnCl4 tetrahedral sites appears to lead to the phase solutions. Molecular motions in Rb2ZnCl4 and in Cs2ZnCl4, undergoing an incommensurate an not incommensurate phase transition, respectively, were also compared.

Original languageEnglish
Pages (from-to)363-368
Number of pages6
JournalZeitschrift fur Naturforschung - Section A Journal of Physical Sciences
Volume57
Issue number6-7
Publication statusPublished - 2002 Jun 1

Fingerprint

Spin-lattice relaxation
Solitons
solitary waves
spin-lattice relaxation
Motion
Quadruple
Phase transitions
Triangular pyramid
Temperature Dependence
tetrahedrons
Phase Transition
temperature dependence
Temperature

Keywords

  • Cl NQR
  • KZnCl
  • Phase Soliton Formation
  • Residual Commensurations

ASJC Scopus subject areas

  • Physical and Theoretical Chemistry

Cite this

35Cl NQR study of phase soliton formation and residual commensurations in K2ZnCl4 . / Oh, Dong Keun; Lee, Cheol Eui; Jeong, S. Y.

In: Zeitschrift fur Naturforschung - Section A Journal of Physical Sciences, Vol. 57, No. 6-7, 01.06.2002, p. 363-368.

Research output: Contribution to journalArticle

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