Author:
Thi Nguyen Minh Hong,Pham Thanh Tien,Van La Nam,Chen Soo Kien,Nguyen Tiep Huy
Abstract
In this work, we have studied the electric field-induced spin switching in the PZT/NiFe/CoFe nanostructured composites by sputtering ferromagnetic layers on a horizontal polarized piezoelectric PZT substrate. The electric field-induced change in the magnetization orientation was investigated systematically using a vibrating sample magnetometer and analytical simulations. The results revealed that electric field applications could indirectly control the magnetic spin orientations. Moreover, the magnetization change depends not only on the electric field but also on the direction of the electric field applying against the magnetic field. The images of magnetic moment orientations under various electric field applications are modeled by the Monte Carlo and NMAG simulations. In particular, a critical electric field of Ecr ≈ 300 kV/cm, which makes a 90o spin switching, was determined. These results are proposed to offer an opportunity for random access memory applications.
Publisher
Universiti Putra Malaysia
Subject
General Earth and Planetary Sciences,General Environmental Science
Reference21 articles.
1. Cheng, Y., Peng, B., Hu, Z., Zhou, Z., & Liu, M. (2018). Recent development and status of magnetoelectric materials and devices. Physics Letters A, 382(41), 3018-3025. https://doi.org/https://doi.org/10.1016/j.physleta.2018.07.014
2. Cheong, S. W., & Mostovoy, M. (2007). Multiferroics: A magnetic twist for ferroelectricity. Nature Materials, 6(1), 13-20. https://doi.org/10.1038/nmat1804
3. Cornelissen, T. D., Biler, M., Urbanaviciute, I., Norman, P., Linares, M., & Kemerink, M. (2019). Kinetic Monte Carlo simulations of organic ferroelectrics. Physical Chemistry Chemical Physics, 21(3), 1375-1383. https://doi.org/10.1039/C8CP06716C
4. Dung, T. V., & Long, D. D. (2016). Electric-field control of a spin “bit” configuration in MERAM model: A Monte Carlo study. VNU Journal of Science: Mathematics - Physics, 32(2), 61-68.
5. Eerenstein, W., Mathur, N. D., & Scott, J. F. (2006). Multiferroic and magnetoelectric materials. Nature, 442(7104), 759-765. https://doi.org/10.1038/nature05023