Novel synthetic ferrimagnet pinned layers for metallic CPP spin valves requiring high pinning-field and output

IEEE Transactions on Magnetics

Volumn 41, Issue 10, 2005, Pages 2929-2931

  Oshima, Hirotaka ^a   Nagasaka, Keiichi ^a   Jogo, Arata ^a   Ibusuki, Takahiro ^a   Shimizu, Yutaka ^a   Tanaka, Atsushi ^a  

^a FUJITSU LABORATORIES LTD   (Japan)

Author keywords

Current perpendicular to plane (CPP); Pinned layer; Spin valve; Synthetic ferrimagnet

Indexed keywords

DATA STORAGE EQUIPMENT; FERROMAGNETIC MATERIALS; IMPURITIES; SENSORS; TRANSPORT PROPERTIES;

CURRENT PERPENDICULAR TO PLANE; PINNED LAYER; SPIN VALVE; SYNTHETIC FERRIMAGNET;

MAGNETORESISTANCE;

EID: 27744587278     PISSN: 00189464     EISSN: None     Source Type: Journal    
DOI: 10.1109/TMAG.2005.855312     Document Type: Article

References (12)

1. A. Tanaka, Y. Shimizu, Y. Seyama, K. Nagasaka, R. Kondo, H. Oshima, S. Eguchi, and H. Kanal, "Spin-valve heads in current-perpendicular-to-plane mode for ultrahigh-density recording," IEEE. Trans. Magn., vol. 38, no. 1, pp. 84-88, Jan. 2002.
2. A. Matsuzono, S. Terada, H. Ono, A. Furukawa, T. Sone, S. Sasaki, Y. Kakihara, Y. Takeda, N. Chiyokubo, and H. Matsuki, "Study on requirements for shielded current perpendicular to the plane spin valve heads based on dynamic read tests," J. Appl. Phys., vol. 91, pp. 7267-7269, May 2002.
3. M. Takagishi, K. Koi, M. Yoshikawa, T. Funayama, H. Iwasaki, and M. Sahashi, "The applicability of CPP-GMR heads for magnetic recording," IEEE. Trans. Magn., vol. 38, no. 5, pp. 2277-2282, Sep. 2002.
4. M. Saito, N. Hasegawa, Y. Ide, Y. Nishiyama, Y. Hayakawa, M. Ishizone, T. Yamashita, S. Yanagi, and A. Takahashi, "Narrow track current- perpendicular-to-plane spin valve GMR heads," IEEE Trans. Magn., vol. 40, no. 1, pp. 207-212, Jan. 2004.
5. M. Hosomi, E. Makino, I. Konishiike, N. Sugawara, and S. Ohkawara, "Film structure dependence of the magnetoresistive properties in current perpendicular to plane spin valves and its relation with current in plane magnetoresistive properties," J. Appl. Phys., vol. 91, pp. 8099-8101, May 2002.
6. H. Oshima, K. Nagasaka, Y. Seyama, Y. Shimizu, and A. Tanaka, "Spin filtering effect at inserted interfaces in perpendicular spin valves," Phys. Rev. B, vol. 66, p. 140404(R)-1-4, Oct. 2002.
7. H. Yuasa, M. Yoshikawa, Y. Kamiguchi, K. Koi, H. Iwasaki, M. Takagishi, and M. Sahashi, "Output enhancement of spin-valve giant magnetoresistance in current-perpendicular-to-plane geometry," J. Appl. Phys., vol. 92, pp. 2646-2650, Sep. 2002.
8. H. Oshima, K. Nagasaka, Y. Seyama, A. Jogo, Y. Shimizu, A. Tanaka, and Y. Miura, "Current-perpendicular spin valves with partially oxidized magnetic layers for ultrahigh-density magnetic recording," IEEE Trans. Magn., vol. 39, no. 5, pp. 2377-2380, Sep. 2003.
9. H. Fukuzawa, H. Yuasa, S. Hashimoto, K. Koi, H. Iwasaki, M. Takagishi, Y. Tanaka, and M. Sahashi, "MR ratio enhancement by NOL current-confined-path structures in CPP spin valves," IEEE Trans. Magn., vol. 40, no. 4, pp. 2236-2238, Jul. 2004.
10. T. Valet and A. Pert, "Theory of the perpendicular magnetoresistance in magnetic multilayers," Phys. Rev. B, vol. 48, pp. 7099-7113, Sep. 1993.
11. N. Strelkov, A. Vedyaev, and B. Dieny, "Extension of the semiclassical theory of current-perpendicular-to-plane giant magnetoresistance including spin flip to any multilayered magnetic structures," J. Appl. Phys., vol. 94, pp. 3278-3287, Sep. 2003.
12. S. Y. Hsu, A. Barthélémy, P. Holody, R. Loloee, P. A. Schroeder, and A. Pert, "Toward a unified picture of spin dependent transport in perpendicular giant magnetoresistance and bulk alloys," Phys. Rev. Lett., vol. 78, pp. 2652-2655, Mar. 1997.