Abstract
A simple physical model is presented which predicts the sign and magnitude of stress in heteroepitaxial films. The model explains experimental observations of ferromagnetic resonance, domain structure, and crazing in magnetic oxide films grown by chemical vapor deposition (CVD) on non-magnetic substrates. It provides a means of predicting and developing compatible film-substrate combinations for epitaxial bubble domain materials utilizing a stress-induced uniaxial magnetic anisotropy. A basic result of the model, the conditions under which films can be grown in compression, has been verified experimentally for CVD iron garnets.
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