Effects of Ta and Pt addition on magnetic properties in cocrtapt perpendicular magnetic recording media

IEICE Transactions on Electronics

Volumn E80-C, Issue 9, 1997, Pages 1174-1179

  Lee, Seon ^a   Koh, Jung Hyuk ^a   Lee, Taek Dong ^a  

^a Korea Advanced Institute of Science and Technology (KAIST)   (South Korea)

Author keywords

AQ M; Cr segregation; P t effect; Perpendicular coercivity; Ta effect; Ti underlayer

Indexed keywords

BINARY ALLOYS; COBALT ALLOYS; COERCIVE FORCE; MAGNETIC PROPERTIES; MAGNETIC RECORDING; PLATINUM; SEGREGATION (METALLOGRAPHY); TANTALUM; TITANIUM ALLOYS;

COLUMN BOUNDARIES;

MAGNETIC FILMS;

EID: 0031222963     PISSN: 09168524     EISSN: None     Source Type: Journal    
DOI: None     Document Type: Article

References (10)

1. S. Iwasaki and Y. Nakamura, "An analysis for the
2. maenetization mode for high density magnetic recording," IEEE Trans. Magn.. vol. MAG-13, p. 1272, 1977.
3. C. H. Hwang, Y. S. Park, P. W. Jang, and T. D. Lee, "Magnetic properties and structure of CoCrTa films for wide range of Cr variation," IEEE Trans. Magn., vol. MAG-29, p. 3733, 1993.
4. C. Gao, R. Malmhill, H. J. Richter, Z. Lin, G. L. Chen, and G. C. Rauch, "Correlation of bulk saturation magnetization with signal-to-media-noise ratio of CoCr(Pt)Ta alloy thin film discs," Digests of Intermag'97, CP04, 1997.
5. M. Futamoto, "Workshop on Co-Cr System Alloy Films," PMRC'94 Extended Workshop, Akita p. 37, 1994.
6. P. W. Jang, Y. H. Kirn, T. D. Lee, and T. Kang, "Role of a Co73Cr27 seed layer in CoCr/NiFe medium," IEEE Trans. Magn. vol. MAG-25, p. 4168, 1989.
7. F. Shmidt and A. Hubert, "Domain observations on CoCr-layers with a digitally enhanced kerr-microscope," J. of Magn. and Magn. Materials, vol. 61, p. 347, 1986.
8. Y. Hirayama, K. Kimoto, M. Futamoto, and Y. Sugita, "Compositional separation and noise characteristics in CoCr alloy perpendicular recording media," Digest of the 20 th Annual Conference on Magnetics in Japan, p. 230, 1996.
9. C. H. Hwang, Ph.D. Dissertation, "The effects of Ta addition on the magnetic properties of CoCr films for perpendicular magnetic recording," Yonsei University, Seoul, Korea, Dec., 1993.
10. C. Byun, J. M. Sivertsen, and J. H. Judy, "A study on magnetization reversal mechanisms of CoCr films," IEEE Trans. Magn., vol. MAG-22, p. 1155, 1986.