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Mathematical and Computational Applications is published by MDPI from Volume 21 Issue 1 (2016). Articles in this Issue were published by another publisher in Open Access under a CC-BY (or CC-BY-NC-ND) licence. Articles are hosted by MDPI on as a courtesy and upon agreement with the previous journal publisher.
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Math. Comput. Appl. 1997, 2(3), 131-139;

Investigation of NMR Relaxation Data Using Dipole Correlation Function

Deparment of Pyhsics, Çukurova University, Adana, Turkey
Authors to whom correspondence should be addressed.
Published: 1 December 1997
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In this work, the theories of the relaxation mechanism leading to the dipole-correlation function, playing an important role in the analysis of the spin-lattice and spin-spin relaxation times in magnetic rezonance, are investigated. An evaluation of these theories is made in the light of the experimental data. It is found that the spin-lattice relaxation data of the glassy medium, particularly, do not obey much the single dipole correlation function of the form exp(-t/τ), obtained from the classical Debye relaxation theory of the polar molecules. On the other hand, it is observed that the data can be represented by the non-exponential correlation function driven from the cooperative relaxation models based on the spin-defect interactions. Furthermore, it is shown that the spin-spin relaxation time, obtained from the dipole-correlation function representing the relaxation of the one-dimensional Ising spins with nearest neighbor interactions, is in complete agreement with the experimental observations.
This is an open access article distributed under the Creative Commons Attribution License (CC BY 3.0).

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Yılmaz, Ş.; Bozdemir, S. Investigation of NMR Relaxation Data Using Dipole Correlation Function. Math. Comput. Appl. 1997, 2, 131-139.

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