Growth Parameters of Fully Crystallized YIG, Bi:YIG, and Ce:YIG Films With High Faraday Rotations

We report on the growth of thin films of yttrium iron garnet (YIG) on dielectric substrates. Such films have historically been challenging to grow due to either cracking or incomplete crystallization of the films. We have established the proper growth parameters by tuning seed layer thickness to an...

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Bibliographic Details
Published in:IEEE photonics journal 2014-02, Vol.6 (1), p.1-8
Main Authors: Block, Andrew D., Dulal, Prabesh, Stadler, Bethanie J. H., Seaton, Nicholas C. A.
Format: Article
Language:English
Subjects:
Annealing
Crystallization
Faraday effect
Fracture mechanics
Garnet
Garnets
Iron
magneto-optics
Optimization
Seeds
Thin films
Tuning
X-ray scattering
Yttrium-iron garnet
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Summary:We report on the growth of thin films of yttrium iron garnet (YIG) on dielectric substrates. Such films have historically been challenging to grow due to either cracking or incomplete crystallization of the films. We have established the proper growth parameters by tuning seed layer thickness to an optimum of 45 nm. These films were then used as seed layers for growth of films of Bi:YIG and Ce:YIG. Bi:YIG films show a Faraday rotation of 1700 °/cm, and Ce:YIG films show a Faraday rotation of 3700 °/cm.
ISSN:1943-0655
1943-0647
DOI:10.1109/JPHOT.2013.2293610