The dominant nuclei interactions in ionic conductors and molecular solids are: (1) magnetic interactions which couple to the nuclear magnetic dipole moments, and (2) quadrupolar interactions which accounts for the interaction between the non-cubic electric field gradient (EFG) at the nuclear site and the quadrupole moment of the nucleus with spin I > 1.

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the dominant nuclei interactions in ionic conductors and molecular solids are: (1) magnetic interactions which couple to the nuclear magnetic dipole moments, and (2) quadrupolar interactions which accounts for the interaction between the non-cubic electric field gradient (efg) at the nuclear site and the quadrupole moment of the nucleus with spin i > 1.