Determination of the anisotropy field of garnet bubble materials from domain observation
- 1 October 1974
- journal article
- Published by AIP Publishing in Journal of Applied Physics
- Vol. 45 (10) , 4598-4600
- https://doi.org/10.1063/1.1663096
Abstract
A simplified equation was derived by which the uniaxial anisotropy HK of the usual bubble materials can be determined from the field lying in the plane of the sample at which the domains disappear. It was found that a garnet film epitaxially grown on a (111) plane of Gd3Ga5O12 shows a sixfold symmetry of the domain erasing field which may be due to the cubic crystalline anisotropy of the sample. This implies that, if the cubic anisotropy cannot be neglected compared to the uniaxial anisotropy, the crystallographic axis in the plane of the film along which the domain erasing field is to be applied should be carefully determined. An estimation was made on the contribution of the cubic anisotropy to the domain erasing field when the field lies along a [110] axis.This publication has 4 references indexed in Scilit:
- Domain patterns of a magnetic garnet bubble film in an arbitrarily oriented fieldJournal of Applied Physics, 1974
- Extension of the analysis for an optical magnetometer to include cubic anisotropy in detailJournal of Applied Physics, 1973
- Determination of the local variation of the magnetic properties of liquid-phase epitaxial iron garnet filmsJournal of Applied Physics, 1973
- Analysis of a method for measuring the magnetocrystalline anisotropy of bubble materialsJournal of Applied Physics, 1973