DOI: 10.1063/1.348483. Ferromagnetic amorphouslike oxide films of the Fe2O3-Bi2O3-PbTiO3 system prepared by rf-reactive sputtering

Ferromagnetic amorphouslike oxide films of the Fe2O3-Bi2O3-PbTiO3 system prepared by rf-reactive sputtering

10.1063/1.348483

Crossref journal-article

AIP Publishing

Journal of Applied Physics (317)

Abstract

In this paper, the magnetic properties of ferromagnetic oxide films of the ternary Fe2O3-Bi2O3-PbTiO0 system prepared by rf-reactive sputtering are presented. As-sputtered films deposited at a substrate temperature below 400 °C are amorphous and behave paramagnetically. Amorphous films like these whose composition corresponds to the perovskite solid solution of BiFeO3 -PbTiO3 become crystalline with a perovskite structure on annealing in air, but no distinct spontaneous magnetization appears. On the contrary, in certain compositions in the Fe2O3 -Bi2O3 -PbTiO3 system, the samples retain a glassy (or amorphouslike) state even when the samples were annealed at around 600 °C. Also a spontaneous magnetization appears at room temperature. The maximum room-temperature saturation magnetization 4πMs achieved in this system is 1.67 kG with the composition 0.74Fe2O3 -0.16Bi2O3 -0.10PbTiO3. Experiments imply that the amorphous state is essential for establishment of strong ferromagnetism in the sputtered oxide films. Mössbauer spectroscopy and x-ray photoelectron spectroscopy were performed to examine the microscopic properties of the films that lead to ferromagnetism. The optical transmissivity and magneto-optical Faraday effect of the films are also discussed.

Bibliography

Kajima, A., Kaneda, T., Ito, H., Fujii, T., Okamoto, I., Kimura, T., & Ohdan, K. (1991). Ferromagnetic amorphouslike oxide films of the Fe2O3-Bi2O3-PbTiO3 system prepared by rf-reactive sputtering. Journal of Applied Physics, 69(6), 3663â3669.

Authors 7

A. Kajima (first)
T. Kaneda (additional)
H. Ito (additional)
T. Fujii (additional)
I. Okamoto (additional)
T. Kimura (additional)
K. Ohdan (additional)

References 19 Referenced 20

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{'key': '2024020412544731800_r7', 'first-page': '1303', 'volume': '54–57', 'year': '1986', 'journal-title': 'J. Magn. Magn. Mater.'} / J. Magn. Magn. Mater. (1986)
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Dates

Type	When
Created	23 years, 1 month ago (July 26, 2002, 8:46 a.m.)
Deposited	1 year, 6 months ago (Feb. 4, 2024, 7:54 a.m.)
Indexed	5 months ago (March 31, 2025, 12:19 a.m.)
Issued	34 years, 5 months ago (March 15, 1991)
Published	34 years, 5 months ago (March 15, 1991)
Published Print	34 years, 5 months ago (March 15, 1991)

Funders 0

None

BibTeX

@article{Kajima_1991, title={Ferromagnetic amorphouslike oxide films of the Fe2O3-Bi2O3-PbTiO3 system prepared by rf-reactive sputtering}, volume={69}, ISSN={1089-7550}, url={http://dx.doi.org/10.1063/1.348483}, DOI={10.1063/1.348483}, number={6}, journal={Journal of Applied Physics}, publisher={AIP Publishing}, author={Kajima, A. and Kaneda, T. and Ito, H. and Fujii, T. and Okamoto, I. and Kimura, T. and Ohdan, K.}, year={1991}, month=mar, pages={3663–3669} }

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