Bi-Sc doped bubble garnets supporting 0.35-μm diameter bubbles
- 15 March 1984
- journal article
- Published by AIP Publishing in Journal of Applied Physics
- Vol. 55 (6), 2542-2544
- https://doi.org/10.1063/1.333722
Abstract
Garnet films of (BiSmLu)3(FeSc)5O12 supporting very small diameter (≲0.4 μm) bubbles have been grown on (111) oriented Nd3Ga5O12 substrates by liquid phase epitaxy. The saturation induction 4πMs is increased up to 2100 G by doping Sc in the octahedral site and Bi in the dodecahedral site. At the composition of Bi0.5Sm1.6Lu0.9Fe4.9Sc0.1O12, 4πMs is 2040 G and the bubble diameter can be decreased to 0.35 μm. The anisotropy energy Ku is 2.73×105 erg/cm3 and the quality factor Q (=Ku/2πMs2) is 1.65. Both Sm–Lu pair and Bi contribute to Ku. Bubbles with 0.35-μm diam are considered to be the smallest possible in garnets since 4πMs can hardly exceed 2100 G.Keywords
This publication has 5 references indexed in Scilit:
- Low damping (BiYLu)3Fe5O12 films with 0.5 μm bubblesJournal of Applied Physics, 1982
- Submicron bubble garnets and their characterizationsIEEE Transactions on Magnetics, 1980
- On growth-induced anisotropy in garnet crystalsMaterials Research Bulletin, 1971
- Magnetic Behavior of Substituted Ferrimagnetic GarnetsJournal of Applied Physics, 1966
- REDUCTION OF THE PREPARATION TEMPERATURE OF POLYCRYSTALLINE GARNETS BY BISMUTH SUBSTITUTIONApplied Physics Letters, 1963