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

Materials

Kamal Alameh¹  Mohammad Nur-E-Alam¹  Mikhail Vasiliev¹  Ilya Akimov²  Viacheslav A. Kotov³  Dmitry Balabanov⁴ 

[1] Electron Science Research Institute, Edith Cowan University, 270 Joondalup Drive,Joondalup, WA 6027, Australia;Experimentelle Physik 2, Technische Universität Dortmund, D-44221 Dortmund, Germany;Institute of Radio Engineering and Electronics, Russian Academy of Sciences, 11 Mohovaya St, Moscow 125009, Russia;Moscow Institute of Physics and Technology, 9 Institutskiy Per., Dolgoprudny,Moscow Region 141700, Russia;

关键词: magneto-optic;    garnet;    multilayer thin films;    magnetic media;    nanophotonics;    integrated optics;   

DOI  :  10.3390/ma8041976

来源: DOAJ

【 摘 要 】

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.

【 授权许可】

Unknown