1H NMR spin-spin relaxation in TlH2PO4 undergoing separated antiferroelectric and ferroelastic phase transitions

Se Hun Kim; Kyu Won Lee; J. H. Han; Cheol Eui Lee

doi:10.1016/j.ssc.2007.08.002

¹H NMR spin-spin relaxation in TlH₂PO₄ undergoing separated antiferroelectric and ferroelastic phase transitions

Se Hun Kim, Kyu Won Lee, J. H. Han, Cheol Eui Lee

Department of Physics

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

5 Citations (Scopus)

Abstract

We have investigated hydrogen-bonded TlH₂PO₄ (TDP), undergoing separated antiferroelectric and ferroelastic phase transitions, by means of ¹H nuclear magnetic resonance (NMR) spin-spin relaxation, which gave two distinct decay constants attributed to the lattice diffusion and dynamically disordered hydrogen bonds. A frustrated proton dynamics of the H-bond defects, with an increased activation energy, was identified in association with the ferroelastic phase transition in the system, throwing new light onto the microscopic nature of the phase transitions in the KH₂PO₄ (KDP)-type crystals.

Original language	English
Pages (from-to)	1-4
Number of pages	4
Journal	Solid State Communications
Volume	144
Issue number	1-2
DOIs	https://doi.org/10.1016/j.ssc.2007.08.002
Publication status	Published - 2007 Oct

Keywords

A. Ferroelectrics
E. Nuclear resonance

ASJC Scopus subject areas

Chemistry(all)
Condensed Matter Physics
Materials Chemistry

Access to Document

10.1016/j.ssc.2007.08.002

Cite this

@article{65260ca585904a03a4c12ccf00fdc64a,

title = "1H NMR spin-spin relaxation in TlH2PO4 undergoing separated antiferroelectric and ferroelastic phase transitions",

abstract = "We have investigated hydrogen-bonded TlH2PO4 (TDP), undergoing separated antiferroelectric and ferroelastic phase transitions, by means of 1H nuclear magnetic resonance (NMR) spin-spin relaxation, which gave two distinct decay constants attributed to the lattice diffusion and dynamically disordered hydrogen bonds. A frustrated proton dynamics of the H-bond defects, with an increased activation energy, was identified in association with the ferroelastic phase transition in the system, throwing new light onto the microscopic nature of the phase transitions in the KH2PO4 (KDP)-type crystals.",

keywords = "A. Ferroelectrics, E. Nuclear resonance",

author = "Kim, {Se Hun} and Lee, {Kyu Won} and Han, {J. H.} and Lee, {Cheol Eui}",

note = "Funding Information: This work was supported by the Korea Science and Engineering Foundation (User Program of Proton Engineering Frontier Program as a part of the 21C Frontier R&D Program and RO1-2005-000-10798-0 and R01-2007-000-11813-0) and by the Korea Research Foundation (Grant No. KRF-2004-005-C00060 and the Second Brain Korea 21 Project). This work was also supported by the Seoul Research and Business Development Program (Grant No. 10583). The measurements at the Korean Basic Science Institute (KBSI) are acknowledged.",

year = "2007",

month = oct,

doi = "10.1016/j.ssc.2007.08.002",

language = "English",

volume = "144",

pages = "1--4",

journal = "Solid State Communications",

issn = "0038-1098",

publisher = "Elsevier Limited",

number = "1-2",

}

TY - JOUR

T1 - 1H NMR spin-spin relaxation in TlH2PO4 undergoing separated antiferroelectric and ferroelastic phase transitions

AU - Kim, Se Hun

AU - Lee, Kyu Won

AU - Han, J. H.

AU - Lee, Cheol Eui

N1 - Funding Information: This work was supported by the Korea Science and Engineering Foundation (User Program of Proton Engineering Frontier Program as a part of the 21C Frontier R&D Program and RO1-2005-000-10798-0 and R01-2007-000-11813-0) and by the Korea Research Foundation (Grant No. KRF-2004-005-C00060 and the Second Brain Korea 21 Project). This work was also supported by the Seoul Research and Business Development Program (Grant No. 10583). The measurements at the Korean Basic Science Institute (KBSI) are acknowledged.

PY - 2007/10

Y1 - 2007/10

N2 - We have investigated hydrogen-bonded TlH2PO4 (TDP), undergoing separated antiferroelectric and ferroelastic phase transitions, by means of 1H nuclear magnetic resonance (NMR) spin-spin relaxation, which gave two distinct decay constants attributed to the lattice diffusion and dynamically disordered hydrogen bonds. A frustrated proton dynamics of the H-bond defects, with an increased activation energy, was identified in association with the ferroelastic phase transition in the system, throwing new light onto the microscopic nature of the phase transitions in the KH2PO4 (KDP)-type crystals.

AB - We have investigated hydrogen-bonded TlH2PO4 (TDP), undergoing separated antiferroelectric and ferroelastic phase transitions, by means of 1H nuclear magnetic resonance (NMR) spin-spin relaxation, which gave two distinct decay constants attributed to the lattice diffusion and dynamically disordered hydrogen bonds. A frustrated proton dynamics of the H-bond defects, with an increased activation energy, was identified in association with the ferroelastic phase transition in the system, throwing new light onto the microscopic nature of the phase transitions in the KH2PO4 (KDP)-type crystals.

KW - A. Ferroelectrics

KW - E. Nuclear resonance

UR - http://www.scopus.com/inward/record.url?scp=34548418053&partnerID=8YFLogxK

U2 - 10.1016/j.ssc.2007.08.002

DO - 10.1016/j.ssc.2007.08.002

M3 - Article

AN - SCOPUS:34548418053

SN - 0038-1098

VL - 144

SP - 1

EP - 4

JO - Solid State Communications

JF - Solid State Communications

IS - 1-2

ER -