Ultraslow motion of domain wall in channel inclusion compound studied by means of NMR cross-relaxation

J. H. Krieger; A. M. Panich; A. R. Semenov

doi:10.1016/S0038-1098(01)00337-4

Ultraslow motion of domain wall in channel inclusion compound studied by means of NMR cross-relaxation

J. H. Krieger, A. M. Panich, A. R. Semenov

Department of Physics

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

2 Scopus citations

Abstract

We report temperature dependent ¹H NMR relaxation measurements of the powder thiourea-hexachloroethane inclusion compound, [2.95(NH₂)₂CS]·C₂Cl₆, at different resonance frequencies, from 23 to 55.5 MHz. Significant reduction of spin-lattice relaxation time at 38-47 MHz is caused by the cross-relaxation of protons via the quadrupole chlorine nuclei. We conclude that the effective ¹H-³⁵Cl cross-relaxation observed in powder sample is due to a slow mode process, when the molecules of the domain wall exhibit a correlated translational and rotational motion over the channel. Such a propagation of the domain wall was predicted by atom-atomic potential calculation. We show that the NMR cross-relaxation effect is an effective tool in studying ultraslow motions, in particular in incommensurate structures.

Original language	English
Pages (from-to)	69-72
Number of pages	4
Journal	Solid State Communications
Volume	120
Issue number	2-3
DOIs	https://doi.org/10.1016/S0038-1098(01)00337-4
State	Published - 26 Sep 2001

Keywords

A. disordered systems
A. insulators
E. nuclear resonances

ASJC Scopus subject areas

General Chemistry
Condensed Matter Physics
Materials Chemistry

Access to Document

10.1016/S0038-1098(01)00337-4

Cite this

@article{bf72383fb39a4503b074b16eb88e72ce,

title = "Ultraslow motion of domain wall in channel inclusion compound studied by means of NMR cross-relaxation",

abstract = "We report temperature dependent 1H NMR relaxation measurements of the powder thiourea-hexachloroethane inclusion compound, [2.95(NH2)2CS]·C2Cl6, at different resonance frequencies, from 23 to 55.5 MHz. Significant reduction of spin-lattice relaxation time at 38-47 MHz is caused by the cross-relaxation of protons via the quadrupole chlorine nuclei. We conclude that the effective 1H-35Cl cross-relaxation observed in powder sample is due to a slow mode process, when the molecules of the domain wall exhibit a correlated translational and rotational motion over the channel. Such a propagation of the domain wall was predicted by atom-atomic potential calculation. We show that the NMR cross-relaxation effect is an effective tool in studying ultraslow motions, in particular in incommensurate structures.",

keywords = "A. disordered systems, A. insulators, E. nuclear resonances",

author = "Krieger, {J. H.} and Panich, {A. M.} and Semenov, {A. R.}",

year = "2001",

month = sep,

day = "26",

doi = "10.1016/S0038-1098(01)00337-4",

language = "English",

volume = "120",

pages = "69--72",

journal = "Solid State Communications",

issn = "0038-1098",

publisher = "Elsevier Ltd.",

number = "2-3",

}

TY - JOUR

T1 - Ultraslow motion of domain wall in channel inclusion compound studied by means of NMR cross-relaxation

AU - Krieger, J. H.

AU - Panich, A. M.

AU - Semenov, A. R.

PY - 2001/9/26

Y1 - 2001/9/26

N2 - We report temperature dependent 1H NMR relaxation measurements of the powder thiourea-hexachloroethane inclusion compound, [2.95(NH2)2CS]·C2Cl6, at different resonance frequencies, from 23 to 55.5 MHz. Significant reduction of spin-lattice relaxation time at 38-47 MHz is caused by the cross-relaxation of protons via the quadrupole chlorine nuclei. We conclude that the effective 1H-35Cl cross-relaxation observed in powder sample is due to a slow mode process, when the molecules of the domain wall exhibit a correlated translational and rotational motion over the channel. Such a propagation of the domain wall was predicted by atom-atomic potential calculation. We show that the NMR cross-relaxation effect is an effective tool in studying ultraslow motions, in particular in incommensurate structures.

AB - We report temperature dependent 1H NMR relaxation measurements of the powder thiourea-hexachloroethane inclusion compound, [2.95(NH2)2CS]·C2Cl6, at different resonance frequencies, from 23 to 55.5 MHz. Significant reduction of spin-lattice relaxation time at 38-47 MHz is caused by the cross-relaxation of protons via the quadrupole chlorine nuclei. We conclude that the effective 1H-35Cl cross-relaxation observed in powder sample is due to a slow mode process, when the molecules of the domain wall exhibit a correlated translational and rotational motion over the channel. Such a propagation of the domain wall was predicted by atom-atomic potential calculation. We show that the NMR cross-relaxation effect is an effective tool in studying ultraslow motions, in particular in incommensurate structures.

KW - A. disordered systems

KW - A. insulators

KW - E. nuclear resonances

UR - http://www.scopus.com/inward/record.url?scp=0035955245&partnerID=8YFLogxK

U2 - 10.1016/S0038-1098(01)00337-4

DO - 10.1016/S0038-1098(01)00337-4

M3 - Article

AN - SCOPUS:0035955245

SN - 0038-1098

VL - 120

SP - 69

EP - 72

JO - Solid State Communications

JF - Solid State Communications

IS - 2-3

ER -

Ultraslow motion of domain wall in channel inclusion compound studied by means of NMR cross-relaxation

Abstract

Keywords

ASJC Scopus subject areas

Access to Document

Other files and links

Fingerprint

Cite this