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Materials 2015, 8(4), 1976-1992; doi:10.3390/ma8041976

Properties of Exchange Coupled All-garnet Magneto-Optic Thin Film Multilayer Structures

1
Electron Science Research Institute, Edith Cowan University, 270 Joondalup Drive, Joondalup, WA 6027, Australia
2
Institute of Radio Engineering and Electronics, Russian Academy of Sciences, 11 Mohovaya St, Moscow 125009, Russia
3
Moscow Institute of Physics and Technology, 9 Institutskiy Per., Dolgoprudny, Moscow Region 141700, Russia
4
Experimentelle Physik 2, Technische Universität Dortmund, D-44221 Dortmund, Germany
*
Author to whom correspondence should be addressed.
Academic Editor: Beatriz Noheda
Received: 3 February 2015 / Revised: 13 April 2015 / Accepted: 15 April 2015 / Published: 21 April 2015
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Abstract

The effects of exchange coupling on magnetic switching properties of all-garnet multilayer thin film structures are investigated. All-garnet structures are fabricated by sandwiching a magneto-soft material of composition type Bi1.8Lu1.2Fe3.6Al1.4O12 or Bi3Fe5O12:Dy2O3 in between two magneto-hard garnet material layers of composition type Bi2Dy1Fe4Ga1O12 or Bi2Dy1Fe4Ga1O12:Bi2O3. The fabricated RF magnetron sputtered exchange-coupled all-garnet multilayers demonstrate a very attractive combination of magnetic properties, and are of interest for emerging applications in optical sensors and isolators, ultrafast nanophotonics and magneto-plasmonics. An unconventional type of magnetic hysteresis behavior not observed previously in magnetic garnet thin films is reported and discussed. View Full-Text
Keywords: magneto-optic; garnet; multilayer thin films; magnetic media; nanophotonics; integrated optics magneto-optic; garnet; multilayer thin films; magnetic media; nanophotonics; integrated optics
This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (CC BY 4.0).

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MDPI and ACS Style

Nur-E-Alam, M.; Vasiliev, M.; Kotov, V.A.; Balabanov, D.; Akimov, I.; Alameh, K. Properties of Exchange Coupled All-garnet Magneto-Optic Thin Film Multilayer Structures. Materials 2015, 8, 1976-1992.

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