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Footnotes
H. A. Lorentz:The Theory of Electrons, note 57.
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From the various topics we have treated, we see that there are, indeed, many ramifications to the subject of the breadth of magnetic resonance lines, even in the solid state where the atoms are regularly spaced, and that it is a topic which is a powerful tool for studying the relaxation and exchange mechanisms connected with the magnetization processes.
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Van Vleck, J.H. Line-breadths and the theory of magnetism. Nuovo Cim 6 (Suppl 3), 993–1014 (1957). https://doi.org/10.1007/BF02834707
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DOI: https://doi.org/10.1007/BF02834707