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Electrical Field Induced Magnetization Switching in CoFe/NiFe/PZT Multiferroics

Nguyen, Thi Minh Hong and Pham, Thai Ha and Le, Viet Cuong and Pham, T. Long and Pham, Duc Thang (2014) Electrical Field Induced Magnetization Switching in CoFe/NiFe/PZT Multiferroics. IEEE Transactions on Magnetics, 50 (6). p. 2005204. ISSN 0018-9464

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In this paper, we have investigated the change in magnetization of multiferroic material, based on magnetic nanostructured CoFe/NiFe film grown on the piezoelectric lead zirconate titanate (PZT), under the effect of the strain originated from PZT layer. In this material, a converse magnetoelectric effect and especially, an electric field-induced magnetic anisotropy and magnetization switching process have been observed at the changing stages of applied electric voltage. In addition, a significant relative change in magnetization, above 100%, is obtained, which facilitates practical applications of the materials. This opens possibilities in achieving new types of memory devices, the low energy consumption devices, as well as other functionalities, such as voltage-tunable field sensing. A simple theory based on strain-mediated magnetic-electric coupling is also presented to understand the origin of the change in magnetic properties of the materials.

Item Type: Article
Subjects: Engineering Physics
ISI-indexed journals
Divisions: Faculty of Engineering Physics and Nanotechnology (FEPN)
Depositing User: Ms. Cam Le Tran Thi
Date Deposited: 08 Nov 2015 08:54
Last Modified: 08 Nov 2015 08:55

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