DOI: 10.1063/1.338972. Cobalt-titanium substituted barium ferrite films for magneto-optical memory

Cobalt-titanium substituted barium ferrite films for magneto-optical memory

10.1063/1.338972

Crossref journal-article

AIP Publishing

Journal of Applied Physics (317)

Abstract

We have studied Faraday rotation and magnetic properties of Co-Ti substituted barium ferrite films with perpendicular anisotropy, which were prepared by targets-facing-type sputtering method on (111) oriented GGG substrates. Faraday rotation (θF) of 500–830 nm was measured by using the Faraday modulation method. It was found that θF increased proportionally to the content of cobalt in the wavelength range 700–830 nm. In the BaFe10.42Co0.78Ti0.8O19 film, Faraday rotation and magnetic properties were as follows: θF=0.75 deg/μm at 780 nm, anisotropy field: Hk=5.2 kOe, coercive force: Hc=800 Oe, Curie temperature: TC=380 °C. Thermomagnetic recording was achieved on this film by using a 780-nm laser diode. As a result, 2.0-μm bit patterns were observed by Faraday effect.

Bibliography

Nakamura, H., Ohmi, F., Kaneko, Y., Sawada, Y., Watada, A., & Machida, H. (1987). Cobalt-titanium substituted barium ferrite films for magneto-optical memory. Journal of Applied Physics, 61(8), 3346â3348.

Authors 6

H. Nakamura (first)
F. Ohmi (additional)
Y. Kaneko (additional)
Y. Sawada (additional)
A. Watada (additional)
H. Machida (additional)

References 2 Referenced 34

{'key': '2024020406100716800_r1', 'first-page': '1339', 'volume': '54–57', 'year': '1986', 'journal-title': 'J. Magn. Magn. Mater.'} / J. Magn. Magn. Mater. (1986)
10.1063/1.330284 / J. Appl. Phy. (1982)

Dates

Type	When
Created	23 years, 1 month ago (July 26, 2002, 8:55 a.m.)
Deposited	1 year, 7 months ago (Feb. 4, 2024, 1:10 a.m.)
Indexed	1 year ago (Aug. 13, 2024, 12:53 p.m.)
Issued	38 years, 4 months ago (April 15, 1987)
Published	38 years, 4 months ago (April 15, 1987)
Published Print	38 years, 4 months ago (April 15, 1987)

Funders 0

None

BibTeX

@article{Nakamura_1987, title={Cobalt-titanium substituted barium ferrite films for magneto-optical memory}, volume={61}, ISSN={1089-7550}, url={http://dx.doi.org/10.1063/1.338972}, DOI={10.1063/1.338972}, number={8}, journal={Journal of Applied Physics}, publisher={AIP Publishing}, author={Nakamura, H. and Ohmi, F. and Kaneko, Y. and Sawada, Y. and Watada, A. and Machida, H.}, year={1987}, month=apr, pages={3346–3348} }

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