Single-Pole/TMR Heads for 140-Gb/in2 Perpendicular Recording

IEEE Transactions on Magnetics

Volumn 40, Issue 1 II, 2004, Pages 290-294

  Nakamoto, K ^a   Okada, T ^a   Watanabe, K ^a   Hoshiya, H ^a   Yoshida, N ^a   Kawato, Y ^a   Hatatani, M ^a   Meguro, K ^a   Okada, Y ^a   Kimura, H ^a   Mochizuki, M ^a   Kusukawa, K ^a   Ishikawa, C ^a   Fuyama, M ^a  

^a HITACHI LTD   (Japan)

Author keywords

Laminated pole; Perpendicular recording; Pole erasure; Side shield; Single pole writer; Skew writing; TMR heads

Indexed keywords

DATA REDUCTION; GIANT MAGNETORESISTANCE; LAMINATES; MAGNETIC ANISOTROPY; MAGNETIC HEADS; MAGNETIC SHIELDING; MAGNETIZATION; MAGNETORESISTANCE; SENSORS; SIGNAL TO NOISE RATIO; THERMODYNAMIC STABILITY;

LAMINATED POLE; PERPENDICULAR RECORDING; POLE ERASURE; SIDE SHIELD; SINGLE-POLE WRITER; SKEW WRITING; TUNNELING MAGNETORESISTIVE (TMR) HEADS;

MAGNETIC RECORDING;

EID: 10744225002     PISSN: 00189464     EISSN: None     Source Type: Journal    
DOI: 10.1109/TMAG.2003.821174     Document Type: Article

References (17)

1. N. Bertram and M. Williams, "SNR and density limit estimates: a comparison of longitudinal and perpendicular recording," IEEE Trans. Magn., vol. 36, pp. 4-9, Jan. 2000.
2. 2," IEEE Trans. Magn., vol. 39, pp. 704-709, Mar. 2003.
3. M. Mallary, A. Trabi, and M. Benakli, "One terabit per square inch perpendicular recording conceptual design," IEEE Trans. Magn., vol. 38, pp. 1719-1724, July 2002.
4. W. Cain, A. Payne, M. Baldwinson, and R. Hempstead, "Challenges in the practical implementation of perpendicular magnetic recording," IEEE Trans. Magn., vol. 32, pp. 97-102, Jan. 1996.
5. 2 perpendicular recording," J. Magn. Soc. Jpn., vol. 27, p. 124, 2003.
6. 2," presented at the Joint [NA]PMRC 2003, Monterey, CA, Paper WM-02.
7. M. Mochizuki, C. Ishikawa, H. Ide, K. Nakamoto, Y. Nakatani, and N. Hayashi, "Remanent head field study of single pole-type head based on micromagnetics," J. Appl. Phys. vol. 93, p. 6748, 2003.
8. D. Bai and J. Zhu, "A detached pole tip design of perpendicular write heads for high data-rate recording," IEEE Trans. Magn., vol. 38, pp. 2240-2242, Sept. 2002.
9. _, "Stitched pole-tip design with enhanced head field for perpendicular recording," J. Appl. Phys., vol. 93, p. 6540, 2003.
10. 2," presented at the 47th MMM Conf., Tampa, FL, 2002, Paper DC-01.
11. M. Saito, N. Hasegawa, Y Nishiyama, Y. Ide, Y. Hayakawa, Y. Ichinohe, R. Ikeda, and A. Takahashi, "DET performance of narrow track CPP-GMR heads," presented at the Intermag 2003 Conf., Boston, MA, Paper DD-05.
12. J. Childress, M. Ho, R. Fontana, M. Carey, P. Rice, B. Gurney, and C. Tsang, "Spin-valve and tunnel-valve structures with in situ in-stack bias," IEEE Trans. Magn., vol. 38, pp. 2286-2288, Sept. 2002.
13. T. Lin, D. Mauri, T. Chen, and J. Wolfman, "A tunneling magnetoresistance sensor overlaid with a longitudinal bias stack in a read region," presented at the Intermag Europe 2002 Conf., Amsterdam, The Netherlands, Paper CA-05.
14. M. Hatatani, K. Hoshino, H. Hoshiya, T. Shintani, K. Watanabe, K. Nakamoto, H. Tanaka, and H. Ide, "Read performance of GMR heads with in-stack longitudinal bias layer," J. Appl. Phys., vol. 93, p. 7310, 2003.
15. J. Mallinson and N. Bertram, "On the characteristics of pole-keeper head fields," IEEE Trans. Magn., vol. MAG-20, pp. 721-723, Sept. 1984.
16. K. Nakamoto and N. Bertram, "Analytic perpendicular recording model for transition parameter and NLTS," J. Magn. Soc. Jpn., vol. 26, p. 79, 2002.
17. K. Nakamoto, H. Kimura, and T. Kawabe, "Magnetic read width as a function of media field distribution for GMR heads," presented at the 8th Joint MMM-Intermag Conf., San Antonio, TX, 2001, Paper EB-04.