Chemical engineering of the critical magnetic field for switching ferroelectricity in multiferroic hexaferrites

ORAL

Abstract

Multiferroics wherein the magnetic and ferroelectric order parameters coexist with their large cross-coupling effects have promising application potentials for multifunctional devices. To realize various technical exploitations, not only the capability of switching ferroelectricity with low magnetic field but also the tunability of the critical magnetic field ($B_{c})$ for the switching is essential. Herein, we report our discovery of a novel chemical route to engineer $B_{c}$ in a low field regime in the multiferroic hexaferrite system and discuss its mechanism.

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Authors

  • Sae Hwan Chun

    • FPRD, Department of Physics and Astronomy, Seoul National University, Seoul 151-747, Korea

  • Yisheng Chai

    • FPRD, Department of Physics and Astronomy, Seoul National University, Seoul 151-747, Korea

  • So Young Haam

    • FPRD, Department of Physics and Astronomy, Seoul National University, Seoul 151-747, Korea

  • Deepshikha Jaiswal-Nagar

    • FPRD, Department of Physics and Astronomy, Seoul National University, Seoul 151-747, Korea

  • Dong Hak Nam

    • FPRD, Department of Physics and Astronomy, Seoul National University, Seoul 151-747, Korea

  • Yoon Seok Oh

    • FPRD, Department of Physics and Astronomy, Seoul National University, Seoul 151-747, Korea

  • Ingyu Kim

    • FPRD, Department of Physics and Astronomy, Seoul National University, Seoul 151-747, Korea

  • Beom Sung Lee

    • FPRD, Department of Physics and Astronomy, Seoul National University, Seoul 151-747, Korea

  • Kee Hoon Kim

    • FPRD, Department of Physics and Astronomy, Seoul National University, Seoul 151-747, Korea

  • Kyung Tae Ko

    • Department of Physics, POSTECH, Pohang 790-784, Korea

  • Jae Hoon Park

    • Department of Physics, POSTECH, Pohang 790-784, Korea

  • Jae-Ho Chung

    • Department of Physics, Korea University, Seoul 136-713, Korea