Dysprosium substituted Ce:YIG thin films with perpendicular magnetic anisotropy for silicon integrated optical isolator applications

In this report, dysprosium substituted Ce1Y2Fe5O12 (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 fi...

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Main Authors: Yan Zhang, Qingyang Du, Chuangtang Wang, Wei Yan, Longjiang Deng, Juejun Hu, Caroline A. Ross, Lei Bi
Format: Article
Language:English
Published: AIP Publishing LLC 2019-08-01
Series:APL Materials
Online Access:http://dx.doi.org/10.1063/1.5112827
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spelling doaj-f226a59be1864c508faa8e73d1801ab82020-11-25T01:02:57ZengAIP Publishing LLCAPL Materials2166-532X2019-08-0178081119081119-710.1063/1.5112827018908APMDysprosium substituted Ce:YIG thin films with perpendicular magnetic anisotropy for silicon integrated optical isolator applicationsYan Zhang0Qingyang Du1Chuangtang Wang2Wei Yan3Longjiang Deng4Juejun Hu5Caroline A. Ross6Lei Bi7National Engineering Research Center of Electromagnetic Radiation Control Materials, University of Electronic Science and Technology of China, Chengdu 610054, People’s Republic of ChinaDepartment of Materials Science and Engineering, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, USANational Engineering Research Center of Electromagnetic Radiation Control Materials, University of Electronic Science and Technology of China, Chengdu 610054, People’s Republic of ChinaNational Engineering Research Center of Electromagnetic Radiation Control Materials, University of Electronic Science and Technology of China, Chengdu 610054, People’s Republic of ChinaNational Engineering Research Center of Electromagnetic Radiation Control Materials, University of Electronic Science and Technology of China, Chengdu 610054, People’s Republic of ChinaDepartment of Materials Science and Engineering, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, USADepartment of Materials Science and Engineering, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, USANational Engineering Research Center of Electromagnetic Radiation Control Materials, University of Electronic Science and Technology of China, Chengdu 610054, People’s Republic of ChinaIn this report, dysprosium substituted Ce1Y2Fe5O12 (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. Dy2Ce1Fe5O12 and Dy2Ce1Al0.4Fe4.6O12 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.http://dx.doi.org/10.1063/1.5112827
collection DOAJ
language English
format Article
sources DOAJ
author Yan Zhang
Qingyang Du
Chuangtang Wang
Wei Yan
Longjiang Deng
Juejun Hu
Caroline A. Ross
Lei Bi
spellingShingle Yan Zhang
Qingyang Du
Chuangtang Wang
Wei Yan
Longjiang Deng
Juejun Hu
Caroline A. Ross
Lei Bi
Dysprosium substituted Ce:YIG thin films with perpendicular magnetic anisotropy for silicon integrated optical isolator applications
APL Materials
author_facet Yan Zhang
Qingyang Du
Chuangtang Wang
Wei Yan
Longjiang Deng
Juejun Hu
Caroline A. Ross
Lei Bi
author_sort Yan Zhang
title Dysprosium substituted Ce:YIG thin films with perpendicular magnetic anisotropy for silicon integrated optical isolator applications
title_short Dysprosium substituted Ce:YIG thin films with perpendicular magnetic anisotropy for silicon integrated optical isolator applications
title_full Dysprosium substituted Ce:YIG thin films with perpendicular magnetic anisotropy for silicon integrated optical isolator applications
title_fullStr Dysprosium substituted Ce:YIG thin films with perpendicular magnetic anisotropy for silicon integrated optical isolator applications
title_full_unstemmed Dysprosium substituted Ce:YIG thin films with perpendicular magnetic anisotropy for silicon integrated optical isolator applications
title_sort dysprosium substituted ce:yig thin films with perpendicular magnetic anisotropy for silicon integrated optical isolator applications
publisher AIP Publishing LLC
series APL Materials
issn 2166-532X
publishDate 2019-08-01
description In this report, dysprosium substituted Ce1Y2Fe5O12 (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. Dy2Ce1Fe5O12 and Dy2Ce1Al0.4Fe4.6O12 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.
url http://dx.doi.org/10.1063/1.5112827
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