The preparation and saturation magnetization of yttrium-iron garnets containing various amounts of neodymium was investigated. The amount of Nd which can be incorporated in the garnet structure was determined crystallographically and magnetically. The chemical analysis of the Nd/Y ratio was carried out by the counting of the characteristic x rays of Nd produced by proton bombardment in a Van de Graaff accelerator. A compound with a formula of YNd2Fe5O12 was found to be the richest iron garnet containing Nd and has a saturation magnetization, at room temperature, of 4.25±0.13 Bohr magnetons per formula weight compared to that of 3.55±0.13 of Y3Fe5O12 or Sm3Fe5O12.
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Goldring et al. (1960) studied this question.
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