Investigations of Perpendicular Write Head Design for 1 Tb/in2

IEEE Transactions on Magnetics

Volumn 40, Issue 1 II, 2004, Pages 319-325

  Batra, Sharat ^a   Hannay, Jonathan D ^a   Zhou, Hong ^a   Goldberg, Jason S ^a  

^a SEAGATE TECHNOLOGY   (United States)

Author keywords

Bit aspect ratio (BAR); Effective write field; Finite element model (FEM); Micromagnetic model; Neighborhood induced transition shift (NITS); Perpendicular recording; Side shields; Signal to noise ratio (SNR); Soft underlayer (SUL); Tb in2

Indexed keywords

COMPUTER SIMULATION; FINITE ELEMENT METHOD; JITTER; MAGNETIC ANISOTROPY; MAGNETIC HEADS; MAGNETIZATION; MONTE CARLO METHODS; SIGNAL TO NOISE RATIO; SWITCHING; THERMODYNAMIC STABILITY; VECTORS;

BIT-ASPECT RATIO (BAR); EFFECTIVE WRITE FIELD; MICROMAGNETIC MODEL; NEIGHBORHOOD INDUCED TRANSITION SHIFT (NITS); PERPENDICULAR RECORDING; SIDE SHIELDS; SOFT UNDERLAYER (SUL); TB/IN2; THERMAL ERASE WIDTH; TRANSITION JITTER;

MAGNETIC RECORDING;

EID: 1342329370     PISSN: 00189464     EISSN: None     Source Type: Journal    
DOI: 10.1109/TMAG.2003.821163     Document Type: Article

References (21)

1. R. Wood, "The feasibility of magnetic recording at 1 terabit per square inch," IEEE Trans. Magn., vol. 36, pp. 36-42, Jan. 2000.
2. 2 and data rates beyond 1 Gb/s," IEEE Trans. Magn., vol. 38, pp. 3675-3683, Nov. 2002.
3. M. Mallary, A. Torabi, and M. Benakli, "One terabit per square inch perpendicular recording conceptual design," IEEE Trans. Magn., vol. 38, pp. 1719-1724, July 2002.
4. R. H. Victora, K. Senanan, and J. Xue, "Areal density limits for perpendicular magnetic recording," IEEE Trans. Magn., vol. 38, pp. 1886-1891, Sept. 2002.
5. 2," IEEE Trans. Magn., vol. 39, pp. 1955-1960, July 2003.
6. S. Batra et al., "A perpendicular write head design for high-density recording," IEEE Trans. Magn., vol. 38, pp. 157-162, Jan. 2002.
7. D. J. Seagle, M. A. Meininger, T. J. Beaulieu, and C. J. Spector, "Recording performance of an inductive write-wide, shielded MR readback with a dual perpendicular disk," IEEE Trans. Magn., vol. 26, pp. 2160-2162, Sept. 1990.
8. P. van der Heijden et al., "The effect of media background on reading and writing in perpendicular recording," J. Appl. Phys., vol. 91, no. 10, pp. 8372-8374, 2002.
9. E. Boerner and T. Roscamp, "Modeling neighborhood induced transition shift in perpendicular media with a soft underlayer," IEEE Trans. Magn, vol. 38, pp. 1988-1990, Sept. 2002.
10. P. Dhagat, D. Palmer, and B. Xu, "Neighborhood induced reader bias shift in perpendicular recording," J. Appl. Phys., vol. 93, no. 10, pp. 7729-7731, 2003.
11. M. S. Patwari, S. Batra, and R. H. Victora, "Effect of pole tip anisotropy on the recording performance of a high density perpendicular head," J. Appl. Phys., vol. 93, no. 10, pp. 6543-6545, 2002.
12. N. X. Sun and S. X. Wang, "Soft high saturation magnetization (Fe Co) N thin films for inductive write heads," IEEE Trans. Magn, vol. 36, pp. 2506-2508, Sept. 2002.
13. J. Van Ek, A. Shukh, E. Murdock, G. Parker, and S. Batra, "Micromagnetic perpendicular recording model: soft magnetic underlayer and skew effect," J. Magn. Magn. Mater., vol. 235, pp. 406-412, Oct. 2001.
14. G. Parker, "Micromagnetic simulation of perpendicular media," presented at the 46th MMM Conf. Seattle, Seattle, WA, Nov. 2001, Paper GA-15.
15. T. Roscamp, E. Boemer, and G. Parker, "Three-dimensional modeling of perpendicular reading with a soft underlayer," J. Appl. Phys., vol. 91, no. 10, pp. 8366-8368, 2002.
16. H. Zhou, H. N. Bertram, and M. E. Schabes, "Effect of intergranular interactions on thermal energy barrier distribution in perpendicular media," J. Appl. Phys., vol. 91, no. 10, pp. 8378-8390, 2002.
17. K. R. Coffey, T. Thomson, and J.-U. Thiele, "Angle dependent magnetization reversal of thin film magnetic recording media," J. Appl. Phys., vol. 93, no. 10, pp. 8471-8473, 2003.
18. K. Senanan and R. Victora, "Effect of medium permeability on the perpendicular recording process," Appl. Phys. Lett, vol. 81, no. 20, pp. 3822-3824, 2002.
19. S. Li and L. Wang, "Writing process on a permeable recording layer: a fundamental issue in perpendicular recording," Appl. Phys. Lett, vol. 82, no. 12, pp. 1896-1898, 2003.
20. H. Zhou, H. N. Bertram, and M. Schabes, "Micromagnetic analysis of the effect of intergranular exchange on thermal stability in magnetic recording. III. Perpendicular media," IEEE Trans. Magn, vol. 38, pp. 1422-1428, Mar. 2002.
21. J. Zhu, INSIC presentation.