Fast wall motion in garnet films with orthorhombic anisotropy
- 1 May 1980
- journal article
- research article
- Published by AIP Publishing in Journal of Applied Physics
- Vol. 51 (5), 2780-2783
- https://doi.org/10.1063/1.327941
Abstract
High wall and bubble velocities have been observed in garnet films having a strong orthorhombic anisotropy. This anisotropy is induced by compressive misfit stress in garnets containing Mn3+ ions. The magnetostatics of bubbles in these orthorhombic materials differs from that in uniaxial materials, e.g., no hard bubbles have been observed for large in‐plane anisotropies. Under certain conditions automotion of bubbles has been observed indicating that vertical Bloch lines may be present. Wall mobilities of 55 m s−1Oe−1 and velocities up to 1400 m s−1 have been observed. The possibilities for small bubble diameter applications will be shown.Keywords
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