35Cl NQR Study of Phase Soliton Formation and Residual Commensurations in K2ZnCl4

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

doi:10.1515/zna-2002-6-713

³⁵Cl NQR Study of Phase Soliton Formation and Residual Commensurations in K₂ZnCl₄

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

Department of Physics

Research output: Contribution to journal › Article › peer-review

Abstract

In order to investigate the dynamics of the ZnCl₄ tetrahedra in K₂ZnCl₄,³⁵Cl nuclear quadrupole 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/T_1Q) 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 solitons. Molecular motions in Rb₂ZnCl₄ and in Cs₂ZnCl₄, undergoing an incommensurate an not incommensurate phase transition, respectively, were also compared.

Original language	English
Pages (from-to)	363-368
Number of pages	6
Journal	Zeitschrift fur Naturforschung - Section A Journal of Physical Sciences
Volume	57
Issue number	6-7
DOIs	https://doi.org/10.1515/zna-2002-6-713
Publication status	Published - 2002 Jul

Keywords

Cl NQR
KZnCl
Phase Soliton Formation
Residual Commensurations

ASJC Scopus subject areas

Mathematical Physics
Physics and Astronomy(all)
Physical and Theoretical Chemistry

Access to Document

10.1515/zna-2002-6-713

Cite this

@article{d6aa037cdd0746daaa90f694f4b6ae1f,

title = "35Cl NQR Study of Phase Soliton Formation and Residual Commensurations in K2ZnCl4",

abstract = "In order to investigate the dynamics of the ZnCl4 tetrahedra in K2ZnCl4,35Cl nuclear quadrupole 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 solitons. Molecular motions in Rb2ZnCl4 and in Cs2ZnCl4, undergoing an incommensurate an not incommensurate phase transition, respectively, were also compared.",

keywords = "Cl NQR, KZnCl, Phase Soliton Formation, Residual Commensurations",

author = "Oh, {Dong Keun} and Lee, {Cheol Eui} and Jeong, {S. Y.}",

note = "Funding Information: This work was supported by the Korea Ministry of Science and Technology (National Research Laboratory) and the Korea Research Foundation (BK21).",

year = "2002",

month = jul,

doi = "10.1515/zna-2002-6-713",

language = "English",

volume = "57",

pages = "363--368",

journal = "Zeitschrift fur Naturforschung - Section A Journal of Physical Sciences",

issn = "0932-0784",

publisher = "Verlag der Zeitschrift fur Naturforschung",

number = "6-7",

}

TY - JOUR

T1 - 35Cl NQR Study of Phase Soliton Formation and Residual Commensurations in K2ZnCl4

AU - Oh, Dong Keun

AU - Lee, Cheol Eui

AU - Jeong, S. Y.

N1 - Funding Information: This work was supported by the Korea Ministry of Science and Technology (National Research Laboratory) and the Korea Research Foundation (BK21).

PY - 2002/7

Y1 - 2002/7

N2 - In order to investigate the dynamics of the ZnCl4 tetrahedra in K2ZnCl4,35Cl nuclear quadrupole 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 solitons. Molecular motions in Rb2ZnCl4 and in Cs2ZnCl4, undergoing an incommensurate an not incommensurate phase transition, respectively, were also compared.

AB - In order to investigate the dynamics of the ZnCl4 tetrahedra in K2ZnCl4,35Cl nuclear quadrupole 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 solitons. Molecular motions in Rb2ZnCl4 and in Cs2ZnCl4, undergoing an incommensurate an not incommensurate phase transition, respectively, were also compared.

KW - Cl NQR

KW - KZnCl

KW - Phase Soliton Formation

KW - Residual Commensurations

UR - http://www.scopus.com/inward/record.url?scp=0036619473&partnerID=8YFLogxK

U2 - 10.1515/zna-2002-6-713

DO - 10.1515/zna-2002-6-713

M3 - Article

AN - SCOPUS:0036619473

SN - 0932-0784

VL - 57

SP - 363

EP - 368

JO - Zeitschrift fur Naturforschung - Section A Journal of Physical Sciences

JF - Zeitschrift fur Naturforschung - Section A Journal of Physical Sciences

IS - 6-7

ER -