DOI: 10.1063/1.2836971. Enhancement of ferroelectric and magnetic properties in BiFeO3 films by small amount of cobalt addition

Enhancement of ferroelectric and magnetic properties in BiFeO3 films by small amount of cobalt addition

10.1063/1.2836971

Crossref journal-article

AIP Publishing

Journal of Applied Physics (317)

Abstract

Both the ferroelectric and magnetic properties of polycrystalline BiFeO3 films fabricated by chemical solution deposition were enhanced by adding small amounts of cobalt. Addition of 3at.% cobalt to BiFeO3 films increased the remanent polarization from 49to72μC∕cm2 and decreased the electric coercive field from 0.54to0.44MV∕cm. The ferroelectricity degraded when the cobalt concentration exceeded 9at.% due to the formation of the secondary phases of Bi2Pt. The saturation magnetization was drastically enhanced by the addition of cobalt up to 12at.%. This is because the magnetic moments are not canceled locally since the differences of magnetic moment between B-sites. The saturation magnetization decreased when the cobalt content exceeded 15at.%, thereby attributing to the formation of a nonmagnetic secondary phase of Bi2Pt. It is concluded that both ferroelectric and magnetic properties were enhanced, provided only small amount of cobalt were added to the films.

Bibliography

Naganuma, H., Shimura, N., Miura, J., Shima, H., Yasui, S., Nishida, K., Katoda, T., Iijima, T., Funakubo, H., & Okamura, S. (2008). Enhancement of ferroelectric and magnetic properties in BiFeO3 films by small amount of cobalt addition. Journal of Applied Physics, 103(7).

Authors 10

Hiroshi Naganuma (first)
Nozomi Shimura (additional)
Jun Miura (additional)
Hiromi Shima (additional)
Shintaro Yasui (additional)
Ken Nishida (additional)
Takashi Katoda (additional)
Takashi Iijima (additional)
Hiroshi Funakubo (additional)
Soichiro Okamura (additional)

References 6 Referenced 35

10.1103/PhysRevB.71.014113 / Phys. Rev. B (2005)
10.1126/science.1080615 / Science (2003)
10.1143/JJAP.43.L647 / Jpn. J. Appl. Phys., Part 2 (2004)
{'volume-title': 'IEEE Trans. Ultrason. Ferroelectr. Freq. Control', 'key': '2023070500090799500_c4'} / IEEE Trans. Ultrason. Ferroelectr. Freq. Control
10.1103/PhysRevB.71.060401 / Phys. Rev. B (2005)
10.1016/j.jmmm.2006.10.287 / J. Magn. Magn. Mater. (2007)

Dates

Type	When
Created	17 years, 5 months ago (March 4, 2008, 7:53 p.m.)
Deposited	2 years, 1 month ago (July 5, 2023, 9:37 a.m.)
Indexed	1 month ago (July 30, 2025, 6:50 a.m.)
Issued	17 years, 5 months ago (March 4, 2008)
Published	17 years, 5 months ago (March 4, 2008)
Published Online	17 years, 5 months ago (March 4, 2008)
Published Print	17 years, 4 months ago (April 1, 2008)

Funders 0

None

BibTeX

@article{Naganuma_2008, title={Enhancement of ferroelectric and magnetic properties in BiFeO3 films by small amount of cobalt addition}, volume={103}, ISSN={1089-7550}, url={http://dx.doi.org/10.1063/1.2836971}, DOI={10.1063/1.2836971}, number={7}, journal={Journal of Applied Physics}, publisher={AIP Publishing}, author={Naganuma, Hiroshi and Shimura, Nozomi and Miura, Jun and Shima, Hiromi and Yasui, Shintaro and Nishida, Ken and Katoda, Takashi and Iijima, Takashi and Funakubo, Hiroshi and Okamura, Soichiro}, year={2008}, month=mar }

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