Effect of CoPtCr/Cr on the magnetic properties of permalloy

IEEE Transactions on Magnetics

Volumn 34, Issue 2 PART 2, 1998, Pages 549-551

  Lederman, Marcos ^a  

^a WESTERN DIGITAL CORPORATION   (United States)

Author keywords

Coercive force; Magnetoreresitive materials devices; Permalloy films; Permanent magnets

Indexed keywords

COERCIVE FORCE; MAGNETIC FILMS; MAGNETIC PROPERTIES; MAGNETORESISTANCE; PERMANENT MAGNETS;

HARD BIAS MATERIAL EFFECT; PERMALLOY;

MAGNETIC MATERIALS;

EID: 0032028902     PISSN: 00189464     EISSN: None     Source Type: Journal    
DOI: 10.1109/20.661489     Document Type: Article

References (12)

1. T. Kira, T. Miyauchi, and M. Yoshikawa, "Thin film magnetic head having a magnetized ferromagnetic film on the MR element," U.S. Patent 4639806, 1987.
2. M. T. Krounbi, O. Voegli, and P. K. Wang, "Magnetoresistive head transducer having hard magnetic shunt bias," U.S. Patent 5 005 096, 1991.
3. Y. Shen, W. Chen, W. Jensen, D. Ravipati, V. Retort, R. Rottmayer, S. Rudy, S. Tan, and S. Yuan, "Comparative study of MR head designs with abutted versus overlaid permanent magnet bias," IEEE Trans. Magn., vol. 32, pp. 19-24, 1996.
4. M. A. Parker, K. E. Johnson, C. Hwang, and A. Bermea, " A Crosssection TEM study of the microstructural evolution of CoPtCr/Cr thin films and the effect on magnetic properties," IEEE Trans. Magn., vol. 27, pp. 4730-4732, 1991.
5. L. Lee, B. K. Cheong, D. E. Laughlin, and D. N. Lambeth, "MgO seed layers for CoCrPt/Cr longitudinal magnetic recording media," Appl. Phys. Lett., vol. 67, pp. 3638-3640, 1995.
6. T. P. Nolan, R. Sinclair, R. Ranjan, and T. Yamashita, "Effect of microstructural features on media noise in longitudinal recording media," J. Appl. Phys., vol. 73, pp. 5566-5568, 1993.
7. Q. Peng, H. N. Bertram, N. Fussing, M. Doerner, M. Mirzamaani, D. Margulies, R. Sinclair, and S. Lambert, "Micromagnetic and experimental studies of CoPtCr polycrystalline thin film media with bicrystal microstructure," IEEE Trans. Magn., vol. 31, pp. 2821-2823, 1995.
8. S. Gupta, A. Tsoukatos, G. Chaput, and L. Tagliani, "Controlling magnetic head properties through sputtering," Data Storage, July 1995.
9. G. Choe, "Effect of film morphology on grain boundary segregation induced magnetic properties in heat treated CoCrPt/Cr films," IEEE Trans. Magn., vol. 31, pp. 2809-2811, 1995.
10. H. N. Bertram, Theory of Magnetic Recording. Cambridge, U.K.: Cambridge Univ. Press, 1994.
11. Y. Imry and S.-K. Ma, "Random field instability of the ordered state of continuous symmetry," Phys. Rev. Lett., vol. 35, pp. 1399-1402, 1975.
12. K. E. Johnson, P. R. Ivett, D. R. Timmons, M. Mirzamaani, S. E. Lambert, and T. Yogi, "The Effect of Cr underlayer thickness on magnetic and structural properties of CoCrPt thin films," J. Appl. Phys., vol. 67, pp. 4686-4688, 1990.