Dysprosium substituted Ce:YIG thin films with perpendicular magnetic anisotropy for silicon integrated optical isolator applications
Name
1.5112827.pdf
Description
Published version
Size
4.78 MB
Format
Adobe PDF
Checksum (MD5)
1ebb2c4f3acd894d0b7790a872a2304d
Author(s)
Zhang, Yan
Du, Qingyang
Wang, Chuangtang
Yan, Wei
Deng, Longjiang
Hu, Juejun
Ross, Caroline A.
Bi, Lei
Date Issued
August 2019
Journal
APL Materials
Publisher
AIP Publishing
Citation
Zhang, Yan et al. "Dysprosium substituted Ce:YIG thin films with perpendicular magnetic anisotropy for silicon integrated optical isolator applications." APL Materials 7, 8 (August 2019): 081119 © 2019 Author(s)
Version
Final published version
Abstract
In this report, dysprosium substituted Ce[subscript 1]Y[subscript 2]Fe[subscript 5]O[subscript 12] (Ce:YIG) thin films (Dy:CeYIG) with perpendicular magnetic anisotropy (PMA) are successfully deposited on silicon and silicon-on-insulator waveguides by pulsed laser deposition. The structural, magnetic, and magneto-optical properties of Dy:CeYIG films are investigated. We find that increasing dysprosium concentration leads to a decreased out-of-plane magnetic saturation field. Dy[subscript 2]Ce[subscript 1]Fe[subscript 5]O[subscript 12] and Dy[subscript 2]Ce[subscript 1]Al[subscript 0.4]Fe[subscript 4.6]O[subscript 12] thin films show PMA dominated by magnetoelastic effects due to thermal mismatch strain. These films further exhibit high Faraday rotation and low optical loss. Our work demonstrates that Dy substitution is an effective way to induce PMA in Ce:YIG thin films without compromising their magneto-optical figure of merit, making this material promising for self-biased transverse electric mode optical isolator applications.
MIT Department
Massachusetts Institute of Technology. Department of Materials Science and Engineering
Terms of Use
Creative Commons Attribution 4.0 International license
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DOI of Published Version
https://doi.org/10.1063/1.5112827
