The role of SUL in readback and effect on linear density performance for perpendicular recording

IEEE Transactions on Magnetics

Volumn 39, Issue 4 I, 2003, Pages 1961-1966

  Zhu, Jian Gang ^a   Bai, Daniel Z ^a   Torabi, Adam F ^b  

^a CARNEGIE MELLON UNIVERSITY   (United States)

^b Maxtor Corporation   (United States)

Author keywords

Linear density limit; Micromagnetic modeling; Perpendicular recording; Readback; Soft underlayer

Indexed keywords

COMPUTER SIMULATION; IMAGING SYSTEMS; MAGNETIC FIELDS; OPTIMIZATION;

SOFT UNDERLAYERS (SUL);

MAGNETIC RECORDING;

EID: 0042265219     PISSN: 00189464     EISSN: None     Source Type: Journal    
DOI: 10.1109/TMAG.2003.813754     Document Type: Article

References (14)

1. T. A. Roscamp, E. D. Boerner, and G. J. Parker, "Three-dimensional modeling of perpendicular reading with a soft underlayer," J. Appl. Phys., vol. 91, no. 10, p. 8366, 2002.
2. B. Valcu and H. N. Bertram, "3-D analysis of the playback signal in perpendicular recording for an off-centered GMR element," IEEE Trans. Magn., vol. 38, pp. 2081-2083, Sept. 2002.
3. Y. Suzuki and Y. Nishida, "Calculation method of GMR head response for double layered perpendicular medium," IEEE Trans. Magn., vol. 37, pp. 1337-1339, July 2001.
4. L. Wang, S. Li, and J. Fernandez-de-Castro, "Media-to-sensor demagnetization matrix and its applications in micromagnetic simulation of readback process," IEEE Trans. Magn., vol. 38, pp. 2078-2080, Sept. 2002.
5. B. Valcu, T. Roscamp, and H. N. Bertram, "Pulse shape, resolution, and signal-to-noise ratio in perpendicular recording," IEEE Trans. Magn., vol. 38, pp. 288-294, Jan. 2002.
6. D. Litvinov, M. H. Kryder, and S. Khizroev, "Recording physics of perpendicular media: Soft underlayers," J. Magn. Magn. Mater., vol. 232, p. 84, 2001.
7. D. Z. Bai and J.-G. Zhu, "Micromagnetics of perpendicular write heads with extremely small pole tip dimensions," J. Appl. Phys., vol. 91, no. 10, p. 6833, 2002.
8. M. E. Schabes, B. Lengsfield, and T. Schrefl, "Micromagnetic modeling of soft underlayer magnetization processes and fields in perpendicular magnetic recording," IEEE Trans. Magn., vol. 38, pp. 1670-1675, July 2002.
9. N. R. Darragh, D. J. Mapps, T. Donnelly, J. G. Wade, and J. R. Hoinville, "Observation of underlayer domain noise in perpendicular recording disks," IEEE Trans. Magn., vol. 29, pp. 3742-3744, Nov. 1993.
10. H. S. Jung and W. D. Doyle, "CoFe-IrMn exchange-coupled soft underlayers for perpendicular media," IEEE Trans. Magn., vol. 38, pp. 2015-2017, Sept. 2002.
11. S. Takenoiri, K. Enomoto, Y. Sakai, and S. Watanabe, "Exchange-coupled IrMn/CoZrNb soft underlayers for perpendicular recording media," IEEE Trans. Magn., vol. 38, pp. 1991-1993, Sept. 2002.
12. K. W. Wierman, C. L. Platt, E. B. Svedberg, J. Yu, R. J. M. van de Veerdonk, W. R. Eppler, and K. J. Howard, "Noise characteristics in exchange-biased soft underlayers for perpendicular media," IEEE Trans. Magn., vol. 37, pp. 3956-3959, Nov. 2001.
13. D. Z. Bai and J.-G. Zhu, "A stitched pole-tip design with enhanced head field for perpendicular recording," J. Appl. Phys., to be published.
14. R. Gustafson, "Perpendicular recording; integration issues," in Joint NAPMRC 2003 Dig. Tech. Papers, p. 16.