Magnetic Moments of Some Mixed Rare Earth Iron Garnets
- 1 November 1962
- journal article
- Published by IOP Publishing in Japanese Journal of Applied Physics
- Vol. 1 (5)
- https://doi.org/10.1143/jjap.1.243
Abstract
The maximum amount of substitution of La, Pr and Nd and the saturation magnetization of La, Pr, Nd, Sm and Eu substitutions in the iron garnets of Lu, Yb, Tm and Er was measured. It was found that in a formula R3-x M x Fe5O12 where R=Lu, Yb, Tm and M=La, Pr or Nd the maximum value of x which can be substituted in the garnets was x=0.50 for La, x=1.50 for Pr (x=1.35 for Pr in Er.I.G.) and x=1.85 for Nd (x=2.00 for Nd in Lu.I.G.). The sign of the magnetic moment of the mixed rare earth ions relative to the net iron magnetization was determined. It was found that Pr3+ or Nd3+ are parallel whereas Eu3+, Er3+, Tm3+ and Yb3+ antiparallel to the net iron magnetization. For Sm3+ a small magnetic moment is guessed and discussed.Keywords
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