交换耦合全石榴石磁光薄膜多层结构的特性

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

作者信息

Nur-E-Alam Mohammad, Vasiliev Mikhail, Kotov Viacheslav A, Balabanov Dmitry, Akimov Ilya, Alameh Kamal

机构信息

Electron Science Research Institute, Edith Cowan University, 270 Joondalup Drive, Joondalup, WA 6027, Australia.

Institute of Radio Engineering and Electronics, Russian Academy of Sciences, 11 Mohovaya St, Moscow 125009, Russia.

出版信息

Materials (Basel). 2015 Apr 21;8(4):1976-1992. doi: 10.3390/ma8041976.

DOI:10.3390/ma8041976

PMID:28788043

原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC5507030/

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 BiLuFeAlO or Bi₃Fe₅O:Dy₂O₃ in between two magneto-hard garnet material layers of composition type Bi₂Dy₁Fe₄Ga₁O or Bi₂Dy₁Fe₄Ga₁O: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.

摘要

研究了交换耦合对全石榴石多层薄膜结构磁开关特性的影响。通过将组成类型为BiLuFeAlO或Bi₃Fe₅O:Dy₂O₃的磁软材料夹在两个组成类型为Bi₂Dy₁Fe₄Ga₁O或Bi₂Dy₁Fe₄Ga₁O:Bi₂O₃的磁硬石榴石材料层之间来制备全石榴石结构。所制备的射频磁控溅射交换耦合全石榴石多层膜展现出极具吸引力的磁性能组合，并且在光学传感器和隔离器、超快纳米光子学和磁等离子体学等新兴应用中具有重要意义。报道并讨论了一种以前在磁性石榴石薄膜中未观察到的非常规类型的磁滞行为。