Reversibly controlled ternary polar states

ORAL

Abstract

Anisotropic interaction between electric/magnetic dipoles often produces intriguing physical phenomena, such as exchange bias in the magnetic heterostructure and magnetoelectric coupling in multiferroics. For ferroelectrics, rather than a cooperative dipolar unit element, the spatial electric potential gradient has imitated such interactions with electric dipoles. The defect-dipole, as a dipolar unit element, tends to be considered the undesired to deteriorate the ferroelectric functionality. In this talk, we report that square-tensile-strained BaTiO3 produces in-plane spontaneous polarization, four-variants domains, and the defect-dipole, where their cooperation yields reversible control of ternary polar states.

–

Presenters

  • Yoon Seok Oh

    • Ulsan Natl Inst of Sci & Tech (UNIST)

Authors

  • Yoon Seok Oh

    • Ulsan Natl Inst of Sci & Tech (UNIST)

  • Jun Han Lee

    • Ulsan Natl Inst of Sci & Tech (UNIST)
    • UNIST

  • Nguyen Xuan Duong

    • University of Ulsan, Republic of Korea
    • U. of Ulsan

  • Min-Hyoung Jung

    • Sungkyunkwan University, Republic of Korea
    • Sungkyunkwan University
    • SKKU

  • Hyun-Jae Lee

    • UNIST

  • Ahyoung Kim

    • Sogang U.

  • Youngki YEO

    • KAIST

  • Kibog Park

    • UNIST
    • Ulsan Natl Inst of Sci & Tech

  • Gyehyeon Kim

    • Ulsan National Institute of Science and Technology, Republic of Korea
    • UNIST

  • Byeong-Gwan Cho

    • PAL
    • Pohang Accelerator Laboratory, POSTECH, Pohang
    • Korea Research Institute of Standards and Science

  • Jaegyu Kim

    • KAIST

  • Furqan Ul Hassan Naqvi

    • Hallym U.

  • Jong-Seong Bae

    • Korea Basic Science Institute, Republic of Korea
    • KBSI

  • Jeehoon Kim

    • Pohang University of Science and Technology
    • POSTECH

  • Tae Kwon Song

    • Changwon Nat. U.

  • Furqan Ul Hassan Naqvi

    • Hallym U.

  • Tae Yeong Koo

    • PAL
    • Pohang Accelerator Laboratory

  • Changhee Sohn

    • UNIST Korea
    • Ulsan National Institute of Science and Technology, Republic of Korea
    • UNIST
    • Department of Physics, Ulsan National Institute of Science and Technology, Ulsan, Republic of Korea

  • Kibog Park

    • UNIST
    • Ulsan Natl Inst of Sci & Tech

  • Chan-Ho Yang

    • KAIST

  • Sang Mo Yang

    • Sogang University, Republic of Korea
    • Sogang U.

  • Jun Hee Lee

    • UNIST

  • Hu Young Jeong

    • Ulsan National Institute of Science and Technology, Republic of Korea
    • Ulsan National Institute of Science and Technology
    • UNIST

  • Tae Heon Kim

    • University of Ulsan, Republic of Korea
    • U. of Ulsan