Abstract
PREVIOUS experiments1,2 have shown that the relaxation time for the exchange of energy between the nuclear spin system in a solid and the thermal motions of the lattice is strongly influenced by the presence of paramagnetic impurities. In order to investigate this effect, we have made measurements of the relaxation time T1 of the protons in the water of crystallization of mixed crystals containing a known concentration of paramagnetic ions. The measurements were made by the nuclear resonance absorption method3,4 at a frequency of 9 Mc./sec.
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References
Rollin, B. V., and Hatton, J., Phys. Rev., 74, 346 (1948).
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Bloembergen, N., Purcell, E. M., and Pound, R. V., Phys. Rev., 73, 679 (1948).
Guillien, R., C.R. Acad. Sci., Paris, 209, 21 (1939).
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DARBY, J., ROLLIN, B. Nuclear Magnetic Relaxation in Solids. Nature 164, 66–67 (1949). https://doi.org/10.1038/164066a0
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DOI: https://doi.org/10.1038/164066a0
