Anomalous Larmour Frequency Dependence of Proton Spin-Lattice Relaxation Time (T\(_1\)) in the Ferroelectric Glycine Phosphite

We report here the results of \(^1\)H NMR spin-lattice relaxation time (T\(_1\)) studies in Glycine phosphite which is a ferroelectric below 224 K. The experiments have been carried out in the temperature range from 200 K to 419 K and at two Larmour frequencies of 11.40MHz and 23.56 MHz. We have not...

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Bibliographic Details
Published in:arXiv.org 2000-07
Main Authors: Kannan, R, Ramesh, K P, Ramakrishna, J
Format: Article
Language:English
Subjects:
Ferroelectric materials
Ferroelectricity
Glycine
High temperature
NMR
Nuclear magnetic resonance
Relaxation time
Signal to noise ratio
Spin-lattice relaxation
Temperature dependence
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Summary:We report here the results of \(^1\)H NMR spin-lattice relaxation time (T\(_1\)) studies in Glycine phosphite which is a ferroelectric below 224 K. The experiments have been carried out in the temperature range from 200 K to 419 K and at two Larmour frequencies of 11.40MHz and 23.56 MHz. We have noticed a Larmour frequency dependence on the high temperature side of the T\(_1\) minimum >. A model is proposed based on the BPP theory to explain the observation.
ISSN:2331-8422
DOI:10.48550/arxiv.0007234