Observation of critical behaviors in squaric acid by 1H nuclear magnetic resonance

C. E. Lee; C. H. Lee; M. W. Park

doi:10.1016/j.ssc.2003.12.010

Observation of critical behaviors in squaric acid by ¹H nuclear magnetic resonance

C. E. Lee, C. H. Lee, M. W. Park

Department of Physics

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

3 Citations (Scopus)

Abstract

The phase transitions in squaric acid, a two-dimensional antiferroelectric system, was observed by using ¹H nuclear magnetic resonance. The spin-lattice relaxation time was measured using the inversion recovery method, and spin-spin relaxation time was obtained from solid echo decay. To check the possibilty of decomposition of the sample by heating, differential scanning calorimetry (DSC) measurements were employed, which indicated no changes upon thermal cycling. The spin relaxation measurements indicated a slow-motion limit.

Original language	English
Pages (from-to)	565-567
Number of pages	3
Journal	Solid State Communications
Volume	129
Issue number	9
DOIs	https://doi.org/10.1016/j.ssc.2003.12.010
Publication status	Published - 2004 Mar

Keywords

D. Phase transitions
E. Nuclear resonances

ASJC Scopus subject areas

Chemistry(all)
Condensed Matter Physics
Materials Chemistry

Access to Document

10.1016/j.ssc.2003.12.010

Cite this

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title = "Observation of critical behaviors in squaric acid by 1H nuclear magnetic resonance",

abstract = "The phase transitions in squaric acid, a two-dimensional antiferroelectric system, was observed by using 1H nuclear magnetic resonance. The spin-lattice relaxation time was measured using the inversion recovery method, and spin-spin relaxation time was obtained from solid echo decay. To check the possibilty of decomposition of the sample by heating, differential scanning calorimetry (DSC) measurements were employed, which indicated no changes upon thermal cycling. The spin relaxation measurements indicated a slow-motion limit.",

keywords = "D. Phase transitions, E. Nuclear resonances",

author = "Lee, {C. E.} and Lee, {C. H.} and Park, {M. W.}",

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AU - Lee, C. E.

AU - Lee, C. H.

AU - Park, M. W.

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N2 - The phase transitions in squaric acid, a two-dimensional antiferroelectric system, was observed by using 1H nuclear magnetic resonance. The spin-lattice relaxation time was measured using the inversion recovery method, and spin-spin relaxation time was obtained from solid echo decay. To check the possibilty of decomposition of the sample by heating, differential scanning calorimetry (DSC) measurements were employed, which indicated no changes upon thermal cycling. The spin relaxation measurements indicated a slow-motion limit.

AB - The phase transitions in squaric acid, a two-dimensional antiferroelectric system, was observed by using 1H nuclear magnetic resonance. The spin-lattice relaxation time was measured using the inversion recovery method, and spin-spin relaxation time was obtained from solid echo decay. To check the possibilty of decomposition of the sample by heating, differential scanning calorimetry (DSC) measurements were employed, which indicated no changes upon thermal cycling. The spin relaxation measurements indicated a slow-motion limit.

KW - D. Phase transitions

KW - E. Nuclear resonances

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JF - Solid State Communications

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