Investigation of NMR Relaxation Data Using Dipole Correlation Function
AbstractIn 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.
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Yılmaz, Ş.; Bozdemir, S. Investigation of NMR Relaxation Data Using Dipole Correlation Function. Math. Comput. Appl. 1997, 2, 131-139.
Yılmaz Ş, Bozdemir S. Investigation of NMR Relaxation Data Using Dipole Correlation Function. Mathematical and Computational Applications. 1997; 2(3):131-139.Chicago/Turabian Style
Yılmaz, Ş.; Bozdemir, S. 1997. "Investigation of NMR Relaxation Data Using Dipole Correlation Function." Math. Comput. Appl. 2, no. 3: 131-139.