Abstract
The effects which nonrandom magnetic field inhomogeneities have on the lineshape of narrow nuclear magnetic resonances has been investigated both theoretically and experimentally. Such inhomogeneities may easily arise in conventional electromagnets having cylindrical pole pieces. Several simple inhomogeneity geometries have been considered, and the theoretical expectations compared with the observed features of resonance lineshapes in both liquid and solid samples. The findings are of significant practical relevance since the typical resultant lineshape resembles rather strongly that customarily associated with magnetic shift anisotropy effects (chemical or Knight shift).
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