Systematic control of stress-induced anisotropy in pseudomorphic iron garnet thin films
作者： M. Kubota , K. Shibuya , Y. Tokunaga , F. Kagawa , A. Tsukazaki
DOI: 10.1016/J.JMMM.2013.02.045
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摘要: Abstract Iron garnets are one of the most well-studied magnetic materials that enabled bubble memories and magneto-optical devices employing films with a perpendicular easy axis. However, studies have been conducted on rather thick (>1 μm), it has not elucidated whether is possible to align axis film plane for much thinner ( 1 thin HA values larger than 20 kOe. Among grown, Tm3Fe5O12 Gd3Ga5O12 showed largest e// +0.5% +25 kOe, respectively, realize an apparently axis, confirmed by large M⊥/M// value 7.8. Further, force microscope images maze pattern typical perpendicularly magnetized film. These results reveal method tailoring anisotropy garnet ultrathin utilizing epitaxial strain. may be utilized obtain nanoscale bubbles use in novel devices.
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