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In this paper it will be shown that high bubble velocities can be realized in garnet films with orthorhombic anisotropy for 2-μm as well as for 1-μm bubbles, if bubbles without Bloch lines have been used. Then the maximum velocity is at least 200 ms−1 for 2-μm bubbles and 100 ms−1 for 1-μm bubbles. It appears that bubble diameter and collapse field of these bubbles strongly depend on the value and on the direction of the in-plane field. Small and large bubbles were observed simultaneously in the presence of in-plane fields. Much lower velocities and a strong scatter in the velocity data were observed for bubbles with other wall states.
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Breed et al. (1982) studied this question.
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