Properties of non-crystalline EuIG and DyIG obtained from Mössbauer and magnetization data
Open Access
- 1 November 1979
- journal article
- Published by AIP Publishing in Journal of Applied Physics
- Vol. 50 (B11), 7636-7638
- https://doi.org/10.1063/1.326869
Abstract
Non crystalline (nc) EuIG and DyIG have been prepared by dc¿sputtering. Mössbauer data on 57Fe, 151Eu and 161Dy reveal sharp magnetic transitions at 62 K and 70 K for nc EuIG and DyIG, respectively. The 57Fe hyperfine (hf) spectra consist of three superpositioned patterns for Fe3+ in tetrahedral and octahedral and for Fe2+ in tetrahedral oxygen coordination. The saturation hf fields at 4.2 K are reduced compared to the values of the corresponding crystalline materials. The induced hf field at 151Eu is only 1/8 of that for crystalline EuIKeywords
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