Mechanical force involved multiple fields switching of both local ferroelectric and magnetic domain in a Bi5Ti3FeO15 thin film

Tingting Jia, Hideo Kimura, Zhenxiang Cheng, Hongyang Zhao, Yoon Hyun Kim, Minoru Osada, Takao Matsumoto, Naoya Shibata, Yuichi Ikuhara

    Research output: Contribution to journalArticle

    22 Citations (Scopus)

    Abstract

    Multiferroics have received intense attention due to their great application potential in multi-state information storage devices and new types of sensors. Coupling among ferroic orders such as ferroelectricity, (anti-)ferromagnetism, ferroelasticity and so on will enable dynamic interaction between these ordering parameters. Direct visualization of such coupling behavior in singlephase multiferroic materials is highly desirable for both applications and fundamental study. Manipulation of both ferroelectric and magnetic domains of Bi5Ti3FeO15 thin film using electric field and external mechanical force is reported, which confirms the magnetoelectric coupling in Bi5Ti3FeO15, indicates the electric and magnetic orders are coupled through ferroelasticity. Due to the anisotropic relaxation of ferroelastic strain, the back-switching of out-of-plane electric domains is not as obvious as in-plane. An inevitable destabilization of the coupling between elastic and magnetic ordering happens because of the elastic strain relaxation, which result in a subsequent decay of magnetic domain switching. Mechanical force applied on the surface of Bi5Ti3FeO15 film generates by an atomic force microscopy tip will effectively drive a transition of the local ferroelastic strain state, reverse both the polarization and magnetization in a way similar to an electric field. Current work provides a framework for exploring cross-coupling among multiple orders and potential for developing novel nanoscale functional devices.

    Original languageEnglish
    Article numbere349
    JournalNPG Asia Materials
    Volume9
    Issue number2
    DOIs
    Publication statusPublished - 2017 Jan 1

    ASJC Scopus subject areas

    • Modelling and Simulation
    • Materials Science(all)
    • Condensed Matter Physics

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  • Cite this

    Jia, T., Kimura, H., Cheng, Z., Zhao, H., Kim, Y. H., Osada, M., Matsumoto, T., Shibata, N., & Ikuhara, Y. (2017). Mechanical force involved multiple fields switching of both local ferroelectric and magnetic domain in a Bi5Ti3FeO15 thin film. NPG Asia Materials, 9(2), [e349]. https://doi.org/10.1038/am.2017.3