YIG: Bi2O3 Nanocomposite Thin Films for Magnetooptic and Microwave Applications

Authors

M Nur-E-Alam, Edith Cowan UniversityFollow
Mikhail Vasiliev, Edith Cowan UniversityFollow
Kamal Alameh, Edith Cowan UniversityFollow
Viacheslav Kotov
Victor Demidov
Dmitry Balabanov

Document Type

Journal Article

Publisher

Hindawi

School

Electron Science Research Institute

RAS ID

19421

Comments

Vasiliev, M., Alameh, K., Kotov, V., Demidov, V., & Balabanov, D. (2015). YIG: Bi2O3 Nanocomposite Thin Films for Magnetooptic and Microwave Applications. Journal of Nanomaterials, 2015.Available here

Abstract

Y₃Fe₅O₁₂-Bi₂O₃ composite thin films are deposited onto Gd₃Ga₅O₁₂ (GGG) substrates and their annealing crystallization regimes are optimized (in terms of both process temperatures and durations) to obtain high-quality thin film layers possessing magnetic properties attractive for a range of technological applications. The amount of bismuth oxide content introduced into these nanocomposite-type films is controlled by adjusting the RF power densities applied to both Y₃Fe₅O₁₂ and Bi₂O₃ sputtering targets during the cosputtering deposition processes. The measured material properties of oven-annealed YIG-Bi₂O₃ films indicate that cosputtering of YIG-Bi₂O₃ composites can provide the flexibility of application-specific YIG layers fabrication of interest for several existing, emerging, and also frontier technologies. Experimental results demonstrate large specific Faraday rotation (of more than 1°/µm at 532 nm), achieved simultaneously with low optical losses in the visible range and very narrow peak-to-peak ferromagnetic resonance linewidth of around ΔH_pp= 6.1 Oe at 9.77 GHz.

DOI

10.1155/2015/182691

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This work is licensed under a Creative Commons Attribution 3.0 License.