Ferromagnetic Resonance in Si-Doped YIG
- 1 September 1969
- journal article
- Published by AIP Publishing in Journal of Applied Physics
- Vol. 40 (10) , 3995-4001
- https://doi.org/10.1063/1.1657133
Abstract
The magnetocrystalline anisotropy of Fe2+ ions in YIG has been studied by means of FMR at 10 and 30 GHz at temperatures between 4° and 400°K. Below 50°K strong magnetic anneal occurs. Anneal fields were in the [100], [111], and [110] directions. The g factor is 1.98 at 4.2°K and 1.96 at 290°K. At low temperature the resonance field HR is less than ω/γ by as much as 2000 Oe for all orientations in the (110) plane. The HR versus angle curves are explained quantitatively by taking into account canting of the spins around the Fe2+ ions as well as perturbing electrostatic fields of the neighboring Si ions. The correct temperature dependence and anisotropy of the linewidth ΔH also follow from the model calculation.This publication has 14 references indexed in Scilit:
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