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Microstructural, Optical, and Magnetic Properties of BiCoO3-Modified Bi0.5K0.5TiO3

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Abstract

Pb-free ferroelectric solid solution of Bi0.5K0.5TiO3 with BiCoO3 has been fabricated using a sol-gel technique, exhibiting room-temperature ferromagnetism. The optical bandgap of Bi0.5K0.5TiO3 reduced from 3.21 eV to 1.77 eV with increasing amount of BiCoO3 solid solution. The room-temperature ferromagnetism and bandgap reduction occurred due to BiCoO3 diffusion into Bi0.5K0.5TiO3, resulting in formation of solid solution. These results provide a simple approach to realize room-temperature ferromagnetism in Pb-free ferroelectric materials.

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Authors and Affiliations

  1. School of Engineering Physics, Ha Noi University of Science and Technology, 1 Dai Co Viet Road, Hanoi, Viet Nam

    Nguyen Hoang Tuan, Nguyen Hoang Linh, Nguyen Ngoc Trung & Dang Duc Dung

  2. Department of Physics, Incheon National University, Incheon, 22012, Republic of Korea

    Dorj Odkhuu

Authors
  1. Nguyen Hoang Tuan
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  2. Nguyen Hoang Linh
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  3. Dorj Odkhuu
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  4. Nguyen Ngoc Trung
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  5. Dang Duc Dung
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Correspondence to Dorj Odkhuu or Dang Duc Dung.

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Tuan, N.H., Linh, N.H., Odkhuu, D. et al. Microstructural, Optical, and Magnetic Properties of BiCoO3-Modified Bi0.5K0.5TiO3. J. Electron. Mater. 47, 3414–3420 (2018). https://doi.org/10.1007/s11664-018-6166-0

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  • DOI: https://doi.org/10.1007/s11664-018-6166-0

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