Abstract
Bi x Y 3-x Fe 5 O 12 thin films have been grown on GGG (Gd 3 Ga 5 O 12 ) (1 1 1) substrates by the combinatorial composition-spread techniques under substrate temperature (T sub ) ranging from 410 to 700 °C and O 2 pressure of 200 mTorr. In order to study the effect of substrates on the deposition of Bi x Y 3-x Fe 5 O 12 thin films, garnet substrates annealed at 1300 °C for 3 h were also used. Magneto-optical properties were characterized by our home-designed magneto-optical imaging system. From the maps of Faraday rotation angle θ F , it was evident that the Faraday effect appears only when T sub = 430-630 °C. θ F reaches to the maximum value (∼6°/μm, λ = 632 nm) at 500 °C, and is proportional to the Bi contents. XRD and EPMA analyses showed that Bi ions are easier to substitute for Y sites and better crystallinity is obtained for annealed substrates than for commercial ones.
Original language | English |
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Pages (from-to) | 2628-2633 |
Number of pages | 6 |
Journal | Applied Surface Science |
Volume | 252 |
Issue number | 7 |
DOIs | |
Publication status | Published - 2006 Jan 21 |
Externally published | Yes |
Event | Proceedings of the Third Japan-US Workshop on Combinatorial Material Science and Technology CMST-e SI - Duration: 2004 Dec 7 → 2004 Dec 10 |
Keywords
- Bi Y Fe O thin film
- Combinatorial materials science
- Faraday rotation
- Magneto-optical imaging
ASJC Scopus subject areas
- Chemistry(all)
- Condensed Matter Physics
- Physics and Astronomy(all)
- Surfaces and Interfaces
- Surfaces, Coatings and Films