DOI: 10.1063/1.370019. Role of a paramagnetic amorphous CoZr seed layer in CoCrPt/Ti perpendicular recording media

Role of a paramagnetic amorphous CoZr seed layer in CoCrPt/Ti perpendicular recording media

10.1063/1.370019

Crossref journal-article

AIP Publishing

Journal of Applied Physics (317)

Abstract

A fresh CoZr45 paramagnetic amorphous layer of 20 nm thickness is introduced as a seed layer prior to the Ti underlayer deposition on glass substrate in CoCrPt/Ti perpendicular recording media. By the fresh layer introduction, the thickness of Ti underlayer could be reduced to 100 Å to obtain good perpendicular magnetic properties. The cause of this reduction of the critical Ti underlayer thickness is the formation of a more smooth and absorbed impurity free surface by the CoZr layer deposition. This ensures better aligned and finer Ti grain formation at an early stage. Details of the improvements of magnetic properties are discussed. In the second half, we are reporting high Ku behaviors of the CoCrPt/Ti films when the magnetic layers are thinner than 200 Å. The high Ku behavior was associated with the (10.0) lattice expansion of the Co alloy to maintain coherency with (10.0) lattice of the Ti film at the interfaces. These will be discussed.

Bibliography

Lee, I. S., Ryu, H., Lee, H. J., & Lee, T. D. (1999). Role of a paramagnetic amorphous CoZr seed layer in CoCrPt/Ti perpendicular recording media. Journal of Applied Physics, 85(8), 6133â6135.

Authors 4

I. S. Lee (first)
H. Ryu (additional)
H. J. Lee (additional)
T. D. Lee (additional)

References 4 Referenced 28

{'key': '2024021007475654700_r1', 'first-page': '1426', 'volume': 'MAG-21', 'year': '1985', 'journal-title': 'IEEE Trans. Magn.'} / IEEE Trans. Magn. (1985)
{'key': '2024021007475654700_r2', 'first-page': '270', 'volume': '22', 'year': '1967', 'journal-title': 'Philips Res. Rep.'} / Philips Res. Rep. (1967)
10.1063/1.341167 / J. Appl. Phys. (1988)
{'key': '2024021007475654700_r4', 'first-page': '5271', 'volume': '57', 'year': '1998', 'journal-title': 'Phys. Rev. B'} / Phys. Rev. B (1998)

Dates

Type	When
Created	23 years, 1 month ago (July 26, 2002, 8:39 a.m.)
Deposited	1 year, 6 months ago (Feb. 10, 2024, 4:44 a.m.)
Indexed	4 months, 4 weeks ago (April 3, 2025, 2:03 a.m.)
Issued	26 years, 4 months ago (April 15, 1999)
Published	26 years, 4 months ago (April 15, 1999)
Published Print	26 years, 4 months ago (April 15, 1999)

Funders 0

None

BibTeX

@article{Lee_1999, title={Role of a paramagnetic amorphous CoZr seed layer in CoCrPt/Ti perpendicular recording media}, volume={85}, ISSN={1089-7550}, url={http://dx.doi.org/10.1063/1.370019}, DOI={10.1063/1.370019}, number={8}, journal={Journal of Applied Physics}, publisher={AIP Publishing}, author={Lee, I. S. and Ryu, H. and Lee, H. J. and Lee, T. D.}, year={1999}, month=apr, pages={6133–6135} }

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