Doped Yttrium Iron Garnet (Yig) Thin Films For Integrated Magneto-Optical Applications

1996 ◽  
Vol 446 ◽  
Author(s):  
Bethanie J.H. Stadler ◽  
Yi-Qun Li ◽  
Mondher Cherif ◽  
Kenneth Vaccaro ◽  
Joseph P. Lorenzo

AbstractA novel single-source MOCVD technique was used to deposit Ce:YIG ((Ce,Y)3Fe5O12) films which were investigated for integrated magneto-optical applications, such as waveguide isolators. These films were grown on gadolinium gallium garnet substrates in order to optimize the growth conditions before growth on semiconductor substrates was attempted. We were able to achieve very high ratios of Ce:Y (= 0.4) due to the nonequilibrium nature of MOCVD. Ce:YIG films on GGG substrates were epitaxial with excellent optical and magnetic properties, along with high Faraday rotations that were comparable to commercial Bi:YIG. Planar waveguiding was observed in Ce:YIG films on both GGG and MgO substrates. MgO also proved to be a successful buffer layer for protecting the semiconductor substrates during YIG deposition. The Ce:YIG films on MgO-buffered GaAs had very promising magnetic properties, but the MgO deposition on InP must be optimized before successful Ce:YIG films on InP can be achieved.

2017 ◽  
Vol 43 (1) ◽  
pp. 1236-1241 ◽  
Author(s):  
Lining Pan ◽  
Xinlei Zhang ◽  
Jianbo Wang ◽  
Qingfang Liu

2019 ◽  
Vol 236 ◽  
pp. 547-549 ◽  
Author(s):  
L.R.F. Leal ◽  
Y. Guerra ◽  
E. Padrón-Hernández ◽  
A.R. Rodrigues ◽  
F.E.P. Santos ◽  
...  

2019 ◽  
Vol 45 (3) ◽  
pp. 3414-3418
Author(s):  
Qianwen Guo ◽  
Hui Zheng ◽  
Liang Zheng ◽  
Peng Zheng ◽  
Qiong Wu

2016 ◽  
Vol 846 ◽  
pp. 626-634 ◽  
Author(s):  
Noor Baayah Ibrahim ◽  
Ftema W. Aldbea ◽  
Akmal Zaini Arsad ◽  
Noorhasniyah Md Rodee

Yttrium iron garnet (Y3Fe5O12) films were prepared by a sol-gel method followed by an annealing process at 500,600,700,800, and 900°C in oxygen atmosphere for 2 hours. The microstructure characterization carried out by an X-ray diffractometer showed that the film started to crystalline into YIG phase at 700°C. The average grain size of the films measured using a field emission scanning electron microscope gave the average value of 20 to 70 nm. The magnetic properties measured by a vibrating sample magnetometer showed that all of the films were soft magnetic materials. The saturation magnetization values increased with the increment of annealing temperature. However, the coercivity values were independence with temperatures.Keywords:Thinfilms;Crystalline;Sol-gelmethod;


2017 ◽  
Vol 4 (7) ◽  
pp. 076101
Author(s):  
Zhong Li ◽  
Amit Vikram Singh ◽  
Ankur Rastogi ◽  
Jaume Gazquez ◽  
Albina Y Borisevich ◽  
...  

2017 ◽  
Vol 95 (6) ◽  
Author(s):  
A. Talalaevskij ◽  
M. Decker ◽  
J. Stigloher ◽  
A. Mitra ◽  
H. S. Körner ◽  
...  

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