English
 
Help Privacy Policy Disclaimer
  Advanced SearchBrowse

Item

ITEM ACTIONSEXPORT
  A study of the paraelectric-ferroelectric phase transition of triglycine sulphate by deuteron nuclear magnetic resonance and relaxation

Slósarek, G., Heuer, A., Zimmermann, H., & Haeberlen, U. (1989). A study of the paraelectric-ferroelectric phase transition of triglycine sulphate by deuteron nuclear magnetic resonance and relaxation. Journal of Physics: Condensed Matter, 1(34), 5931-5954. doi:10.1088/0953-8984/1/34/011.

Item is

Files

show Files
hide Files
:
JPhysCondensMatter_1_1989_5931.pdf (Any fulltext), 2MB
 
File Permalink:
-
Name:
JPhysCondensMatter_1_1989_5931.pdf
Description:
-
OA-Status:
Visibility:
Restricted (Max Planck Institute for Medical Research, MHMF; )
MIME-Type / Checksum:
application/pdf
Technical Metadata:
Copyright Date:
-
Copyright Info:
-
License:
-

Locators

show
hide
Description:
-
OA-Status:
Description:
-
OA-Status:

Creators

show
hide
 Creators:
Slósarek, Genowefa, Author
Heuer, Andreas1, Author           
Zimmermann, Herbert2, 3, 4, 5, Author           
Haeberlen, Ulrich1, Author           
Affiliations:
1Research Group Prof. Dr. Haeberlen, Max Planck Institute for Medical Research, Max Planck Society, ou_1497739              
2Department of Molecular Physics, Max Planck Institute for Medical Research, Max Planck Society, ou_1497705              
3Department of Biomolecular Mechanisms, Max Planck Institute for Medical Research, Max Planck Society, ou_1497700              
4Zimmermann Group, Max Planck Institute for Medical Research, Max Planck Society, ou_1497749              
5Emeritus Group Biophysics, Max Planck Institute for Medical Research, Max Planck Society, ou_1497712              

Content

show
hide
Free keywords: -
 Abstract: The quadrupole coupling (QC) tensors of the deuteron in all hydrogen positions are reported for the paraelectric (p) phase of triglycine sulphate (TGS), while for the ferroelectric (f) phase the authors restrict themselves to the deuterons in the 'long' and 'short' hydrogen bonds and to the ND3 deuterons of glycine GI. In addition, the orientation dependence of the spin-lattice relaxation rate 1/T1 of the ND3 deuterons of GI and the temperature dependence of 1/T1 of the CD2 deuterons are reported for the p phase. It is shown that the QC tensors and the relaxation rates of the ND3 and CD2 groups of GI can be described well by a dynamic order-disorder model of the phase transition. Any displacive-type model can be ruled out. The temperature dependence of the order parameter p is determined. The CD2-ND3 group of GI flips as a rigid unit between the two sides with a correlation time tau f. The ND3 group reorients in addition about the C-N bond with a correlation time tau r. At T=Tc+6 K, tau r=(2.1+or-0.2)*10-11 s, tau f=(1.3+or-0.2)*10-11 s; tau f does not vary measurably in the temperature range from Tc to Tc+40 K. At the phase transition there is no critical slowing down to the flip rate. The QC tensors of the CD2 deuterons are used for a significant refinement of the neutron diffraction structure determination of TGS.

Details

show
hide
Language(s): eng - English
 Dates: 1988-12-121989
 Publication Status: Issued
 Pages: 24
 Publishing info: -
 Table of Contents: -
 Rev. Type: Peer
 Identifiers: DOI: 10.1088/0953-8984/1/34/011
 Degree: -

Event

show

Legal Case

show

Project information

show

Source 1

show
hide
Title: Journal of Physics: Condensed Matter
Source Genre: Journal
 Creator(s):
Affiliations:
Publ. Info: Bristol : IOP Publishing
Pages: - Volume / Issue: 1 (34) Sequence Number: - Start / End Page: 5931 - 5954 Identifier: ISSN: 0953-8984
CoNE: https://pure.mpg.de/cone/journals/resource/954928562478