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Mossbauer spectroscopy study of substituted yttrium iron garnets

1996; Elsevier BV; Volume: 97; Issue: 9 Linguagem: Inglês

10.1016/0038-1098(95)00645-1

1879-2766

Mahdi Lataifeh, Abed-Fatah D. Lehlooh,

Photonic Crystals and Applications

Mossbauer spectroscopy studies of 57Fe in a number of rare earth iron garnets (RxY1−x)3Fe5O12 where R is either Ho3+ or Gd3+ show that the hyperfine field at the iron nucleus in the octahedral and tetrahedral sites increases with rare earth substitution. This increase could be attributed to the increase in the average magnetic moment μ of these compounds with R3+ substitution. Alternatively this increase in Bhf could be as a result of a change in the magnetic dipole-dipole interaction and the supertransferred hyperfine field.