57Fe NMR in Y3Fe4.5Ga0.5O12 single crystal |
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| Authors: | M. Brabenec J. Englich M. Rotter P. Novák J. Šrámek |
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| Affiliation: | (1) Faculty of Mathematics and Physics, Charles University, Ke Karlovu 5, 121 16 Praha 2, Czechoslovakia;(2) Institute of Physics, Czech. Acad. Sci., Na Slovance 2, 180 40 Praha 8, Czechoslovakia;(3) TESLA Communications Research Institute, Novodvorská 994, 142 21 Praha 4, Czechoslovakia |
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| Abstract: | The angular dependence of the57Fe NMR spectra in a single crystal of Ga substituted YIG is studied with special attention paid to the satellite lines of the octahedral iron. These satellites correspond to ferric ions in the neighbourhood of which the Ga3+ ion is located. The anisotropy of the hyperfine field of these satellites is in accord with the prediction of the independent bond model. A simple analysis indicates that the main source of the anisotropy, besides the dipolar interaction, is the change of the supertransferred part of the hyperfine field.Dedicated to Dr. Svatopluk Krupi ka on the occasion of his 65th birthday. |
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