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Quasi-static modulation of multiferroic properties in flexible magnetoelectric Cr2O3/muscovite heteroepitaxy

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Liu,  Cheng-En
Physics of Correlated Matter, Max Planck Institute for Chemical Physics of Solids, Max Planck Society;

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Hu,  Zhiwei
Zhiwei Hu, Physics of Correlated Matter, Max Planck Institute for Chemical Physics of Solids, Max Planck Society;

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Chang,  Chun-Fu
Chun-Fu Chang, Physics of Correlated Matter, Max Planck Institute for Chemical Physics of Solids, Max Planck Society;

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Citation

Lai, Y.-H., Shao, P.-W., Kuo, C.-Y., Liu, C.-E., Hu, Z., Luo, C., et al. (2023). Quasi-static modulation of multiferroic properties in flexible magnetoelectric Cr2O3/muscovite heteroepitaxy. Acta Materialia, 243: 118509, pp. 1-8. doi:10.1016/j.actamat.2022.118509.


Cite as: https://hdl.handle.net/21.11116/0000-000C-455F-D
Abstract
Due to the strong coupling between electrical polarization and magnetization, magnetoelectric materials show promising features for low-power spintronics and ultra-sensitive magnetic sensors. Compared to the conventional tunning of magnetoelectricity, this work presents a modulation of magnetic and electric orders in magnetoelectric material through a quasi-static mechanical strain. To acquire this, linear magnetoelectric Cr2O3 film is fabricated epitaxially on muscovite substrates. Taking the natural flexibility of muscovite, applying a strain to the heterostructure is feasible via mechanical bending. In the bending experiment, the magnetization of Cr2O3 film can be enhanced significantly, and the techniques of X-ray absorption dichroism unveil insights with support from theoretical predictions. Besides, the electric polarization and magnetoelectric coupling of Cr2O3 can also be adjusted by mechanical bending. This work offers a comprehensive understanding of the relationship between quasi-static strain and magnetic and electrical behaviors and opens a new aspect of the combination between magnetoelectric materials and flexible substrates for future development. © 2022