Title :
Combinatorial Screening of the BiDyYb Iron Garnet Material System for High Kerr Rotation Composition
Author :
Li, Xuefei ; Luo, Zhenlin ; Bao, Jun ; Gao, Chen ; Lu, Yalin
Author_Institution :
Dept. of Phys., Univ. of Sci. & Technol. of China, Hefei
Abstract :
We investigated the (BixDyyYb3-x-y)Fe5O12 ternary combinatorial composition spread with the goal of finding new compositions with a large magneto-optical effect for possible use as magneto-optical storage materials. High-throughput magneto-optical characterization of the spread showed that the Dy0.6Yb0.5Bi1.9Fe5O12 composition has the largest Kerr effect in this ternary system. After annealing at 690degC for 1 h, a scaled-up thin-film sample of this composition has a remanent magnetization as high as 90% of its saturation magnetization, indicating a good storage application potential.
Keywords :
Kerr magneto-optical effect; annealing; bismuth compounds; dysprosium compounds; garnets; magnetic thin films; remanence; ytterbium compounds; Dy0.6Yb0.5Bi1.9Fe5O12; Kerr rotation; annealing; combinatorial screening; garnet; magneto-optical effect; magneto-optical storage materials; remanent magnetization; saturation magnetization; temperature 690 degC; ternary combinatorial composition spread; thin film; time 1 h; Bi-substituted rare earth iron garnet; Kerr rotation; combinatorial screening; high-throughput characterization; magneto-optical storage;
Journal_Title :
Magnetics, IEEE Transactions on
DOI :
10.1109/TMAG.2008.2000736
