The Wall Effect in Ferrimagnetic Resonance Experiments
- 1 July 1960
- journal article
- Published by IOP Publishing in Proceedings of the Physical Society
- Vol. 76 (1) , 99-103
- https://doi.org/10.1088/0370-1328/76/1/312
Abstract
Measurements have been made of the shift in the applied magnetic field for resonance, caused by the presence of a conducting wall. Small spheres of nickel ferrite and magnesium manganese ferrite were used at wavelengths of 0.87, 1.25 and 3.12 cm and of yttrium iron garnet at a wavelength of 3.12 cm only. The shift was always to lower fields and was independent of frequency within experimental error. Its magnitude at room temperature was 135 and 100 oersteds in nickel and magnesium manganese ferrites respectively. In the garnet, the shift was found to be dependent upon the orientation of the steady field with respect to the conducting plane. A simple explanation is presented which gives agreement with the experimental data in order of magnitude.Keywords
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