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http://dx.doi.org/10.4283/JKMS.2003.13.1.036

The Growth of Magnetic DyBiIG by sol-gel Method  

Park, C.M. (서남대학교 물리학과)
Lee, S.H. (서남대학교 물리학과)
Kim, Seung-Hoon (서남대학교 화학과)
Jang, Hee-Dong (한국지질자원연구원 자원활용연구부)
Abstract
We have grown D $y_{x}$B $i_{3-x}$F $e_{5}$ $O_{12}$ (x = 0.5,1.0, 1.5,2.0) magnetic garnet thin films upon $Al_2$O3i and GGG substrate using Pechini process. The annealing temperature to get single phase D $y_{x}$B $i_{3-x}$F $e_{5}$ $O_{12}$ garnet is dependent on substrate, i.e. the annealing temperature for GGG substrate il 5$0^{\circ}C$ lower than that for $Al_2$ $O_3$ substrate. The grains of garnet thin film grown on GGG (111) plane align along [111] direction, and in this case the hysteresis curve does not saturate up to H : 5000 Oe. We attribute this phenomenon to rotation magnetization process. The maximum amount of Bi substitution in polycrystalline D $y_{x}$B $i_{3-x}$F $e_{5}$ $O_{12}$ thin film prepared by Pechini process is restricted to 2.0 Bi atom/unit cell, and this value is less than that in single garnet crystall grown by LPE method.own by LPE method.ethod.
Keywords
DyBiIG; magnetic garnet thin film; DyBiIG; sol-gel;
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