NDLI: Liquid-Phase Epitaxial Growth of 3 in Diameter Bismuth-Doped Thulium Iron Garnet Films for Magneto-Optical Applications

Content Provider	IEEE Xplore Digital Library
Author	Dainan Zhang Bing Mei Huaiwu Zhang Qinghui Yang Yiheng Rao
Copyright Year	1965
Abstract	We report here the successful growth of a 3 in diameter magneto-optical (MO) garnet film having the composition (BiTm)₃Fe₅O₁₂ by use of the liquid-phase epitaxy (LPE) method. In these experiments, Bi₂O₃ has been used as the fluxing agent thus omitting the use of PbO, which is highly toxic and often detrimental to the quality of film growth. Films with low defect concentration, mirror-like optical surface, high Faraday rotation angle (FRA), and large thicknesses have been obtained by optimizing the flux ratio and LPE process parameters. The thicknesses of the films have been demonstrated to reach 50-60 μm for 3 in GGG substrates. The lattice parameter mismatch between Bi-doped TmIG (Bi:TmIG) film and the GGG substrate reaches a minimum resulting in optimal magnetic and MO properties at a growth rate of 0.87 μm/min. The largest FRA of 0.54°/μm corresponds to an external magnetic field of 25 Oe. The saturation magnetization (4πM_s), 48 emu/cm³, and coercivity (Hc), 2.5 Oe, of Bi:TmIG film reach respective maximum and minimum values for the growth rate 0.87 μm/min.
Sponsorship	IEEE Magnetics Society
Starting Page	1
Ending Page	3
Page Count	3
File Size	605155
File Format	PDF
ISSN	00189464
Volume Number	51
Issue Number	11
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2015-01-01
Publisher Place	U.S.A.
Access Restriction	One Nation One Subscription (ONOS)
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Bismuth Substrates Iron Garnet films Lattices Magnetic properties Faraday rotation angle Magneto-optical property Liquid phase epitaxy magneto-optical (MO) property Faraday rotation angle (FRA) garnet films liquid-phase epitaxy (LPE)
Content Type	Text
Resource Type	Article
Subject	Electronic, Optical and Magnetic Materials Electrical and Electronic Engineering

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