Issue 43, 2018

Electric-field control of magnetic properties for amorphous Fe2O3/LiTaO3 thin film

Abstract

Amorphous-Fe2O3/LiTaO3 film can exhibit weak ferromagnetism, which may arise from some inhomogeneous, non-collinear, ferromagnetic ordered clusters with short range order. A perpendicular electric field acting upon amorphous-Fe2O3/LiTaO3 film could adjust its magnetic properties at 300 K. The saturation magnetization (Ms) of amorphous-Fe2O3/LiTaO3 film could be enhanced by a positive electric field and reduced by a negative electric field. The change induced by an electric field, which was reversible and non-volatile, may be connected with the migration effects of Li+. The oscillation of the curve for the Ms dependent on the voltage may reflect complicated processes. These remarkable and important findings may inspire more in-depth research, and lead to an alternative approach to future magneto-electronic devices.

Graphical abstract: Electric-field control of magnetic properties for amorphous Fe2O3/LiTaO3 thin film

Article information

Article type
Paper
Submitted
27 May 2018
Accepted
07 Oct 2018
First published
09 Oct 2018

J. Mater. Chem. C, 2018,6, 11608-11614

Electric-field control of magnetic properties for amorphous Fe2O3/LiTaO3 thin film

B. Cheng, H. Qin, Z. Zhang, W. Liu, T. Miao, J. Xie, L. Liu, G. Zhou and J. Hu, J. Mater. Chem. C, 2018, 6, 11608 DOI: 10.1039/C8TC02588F

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