LuSm)3Fe5−xGaxO12 garnet films for small bubble diameters
- 1 January 1976
- proceedings article
- Published by AIP Publishing in AIP Conference Proceedings
- Vol. 29 (1) , 105-107
- https://doi.org/10.1063/1.30537
Abstract
The (LuSm)3Fe5−x Ga x O12 garnet system is investigated for bubble devices requiring a nominal bubble size from one to two microns. All film compositions are grown matched on GGG substrates by compensating for the change in lattice constant with different x by varying the Lu/Sm ratio. As the gallium concentration, x, is varied from 0 to 0.84; l increases from 0.045 μm to 0.21 μm and 4πM decreases from 1750 Oe to 530 Oe. Temperature dependence of l and Q shows the applicability of this material system for device operation up to 100°C. Quasistatic margins for T‐bar propagation are given for two micron diameter bubbles in two films with different gallium concentrations.Keywords
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