Journal of the Korean Ceramic Society (한국세라믹학회지)

The Korean Ceramic Society (한국세라믹학회)
권호 표지
DOI QR코드

DOI QR Code

Dielectric and Magnetic Properties of Niobium and Cobalt Co-substituted Multiferroic BiFeO3 Thin Films

Niobium과 Cobalt를 첨가한 Multiferroic BiFeO3 박막의 유전 특성 및 자성 특성

  • Jun, Youn-Ki (Department of Materials Science and Engineering, Seoul National University) ;
  • Hong, Seong-Hyeon (Department of Materials Science and Engineering, Seoul National University)
  • 전윤기 (서울대학교 재료공학부) ;
  • 홍성현 (서울대학교 재료공학부)
  • Published : 2008.09.30
Download PDF
⟨ Previous Next ⟩

Abstract

The effects of Nb and Co ion substitution on the dielectric and magnetic properties of the multiferroic $BiFeO_3$ thin films have been investigated. Heteroepitaxial $BiFeO_3$ thin films were deposited by Pulsed Laser Deposition method. Nb substitution decreased the leakage current by 6 orders of magnitude and Co substituted $BiFeO_3$ thin films showed an enhanced magnetization, 2 times larger than that of un-substituted $BiFeO_3$. Through the co-substitution of Co and Nb, $BiFeO_3$ thin films with a low leakage current and an enhanced magnetization could be obtained.

Keywords

References

  1. J. Wang, J. B. Neaton, H. Zheng, V. Nagarajan, S. Ogale, B. Liu, D. Viehland, V. Vaithyanathan, D. G. Schlom, U. V. Waghmare, N. A. Spaldin, K. M. Rabe, M. Wuttig, and R. Ramesh, "Epitaxial $BiFeO_3$ Multiferroic Thin Film Heterostructures," Science, 299 1719-22 (2003) https://doi.org/10.1126/science.1080615
  2. N. Hur, S. Park, P. A. Sharma, J. S. Ahn, S. Guha, and SW. Cheong, "Electric Polarization Reversal and Memory in a Multiferroic Material Induced by Magnetic Fields," Nature, 429 [27] 392-5 (2004) https://doi.org/10.1038/nature02572
  3. T. Kimura, T. Goto, H. Shintani, K. Ishizaka, T. Arima, and Y. Tokura, "Magnetic Control of Ferroelectric Polarization," Nature, 426 [6] 55-8 (2003) https://doi.org/10.1038/nature02018
  4. M. Fiebig, Th. Lottermoser, D. Frhlich, A.V. Goltsev, and R.V. Pisarev, "Observation of Coupled Magnetic and Electric Domains," Nature, 419 [24] 818-20 (2002) https://doi.org/10.1038/nature01077
  5. B.V. Aken, T.M. Palstra, A. Filippetti, and N.A. Spaldin, "The Origin of Ferroelectricity in Magnetoelectric $YMnO_3$," Nature Mater., 3 [3] 164-70 (2004) https://doi.org/10.1038/nmat1080
  6. T. Kimura, S. Kawamoto, I. Yamada, M. Azuma, M. Takano, and Y. Tokura, "Magnetocapacitance Effect in Multiferroic $BiMnO_3$," Phys. Rev. B, 67 180401 (2003) https://doi.org/10.1103/PhysRevB.67.180401
  7. X. Qi, J. Dho, R. Tomov, M.G. Blamire, and J.L. Mac- Manus-Driscoll, "Greatly Reduced Leakage Current and Conduction Mechanism in Aliovalent-ion-doped $BiFeO_3$," Appl. Phys. Lett., 86 062903 (2005) https://doi.org/10.1063/1.1862336
  8. Ja. Dhahri, M. Boudard, S. Zemni, H. Roussel, and M. Oumezzine, "Structure and Magnetic Properties of Potassium Doped Bismuth Ferrite," J. Solid State Chem., 181 802-11 (2008) https://doi.org/10.1016/j.jssc.2008.01.024
  9. R.K. Mishra, Dillip K. Pradhan, R.N.P. Choudrary, and A. Banerjee, "Dipolar and Magnetic Ordering in Nd-modified $BiFeO_3$ Nanoceramics," J. Magn. Magn. Mater., 320 2602- 7 (2008) https://doi.org/10.1016/j.jmmm.2008.05.005
  10. P. Uniyal and K.L. Yadav, "Study of Dielectric, Magnetic and Ferroelectric Properties in $Bi_{1-x}Gd_xFeO_3$," Mater. Lett., 62 2858-61 (2008) https://doi.org/10.1016/j.matlet.2008.01.103

Cited by

  1. Structure, microstructure, ferroelectric/electromechanical properties and retention characteristics of [Bi1−x Nb x ]FeO3 thin films vol.109, pp.3, 2012, https://doi.org/10.1007/s00339-012-7104-2