Abstract
The method of nuclear paramagnetic resonance absorption1 has been used to study the interaction of nuclei in solids, liquids, and gases with their environment. The two important quantities are the relaxation time T1, describing the energy transfer from the nuclear spin system to the whole of the sample, representing the heat reservoir, and the interaction among the nuclei alone, which can be described by a spin-spin relaxation time T2. From the theory of Waller2 one can predict the relaxation time T1 caused by interaction of the nuclei with the lattice vibrations. The time obtained is at least 104 times larger than the experimental values3″4′5.
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References
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BLOEMBERGEN, N., PURCELL, E. & POUND, R. Nuclear Magnetic Relaxation. Nature 160, 475–476 (1947). https://doi.org/10.1038/160475a0
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DOI: https://doi.org/10.1038/160475a0
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