1[1]Seagate announced 23.8 Gbits / in 2, Read - Rite 26.5Gbits/in2 and 36Gbits/in2, IBM35.3 Gbits/in2 denos in recent press releases , ”Data Storage Magazine, P. 8, July 1999
2[2]Dieter Weller, Andreas Moser, Liesl Folks, et al . High Ku materials approach t 100Gbits/in. IEEE. Tarans. Magn.Vol. 36, P. 10, Jan 2000
3[3]Roger wood. The feasibility of mabnetic recording at 1 Terabitper square inch. IEEE. Trans. Magn. vol. 36(1), p. 36,Jan.2000
4[4]R.L. White, R. M. H. New, and R. F. W. Pease, "Patterned media: A viabie route to 50Gbits/sq in and up for magnertic recording. IEEE. Trans. Magn. vol. 33, p. 9901997
5[5]S.H. Charap, P - L. Lu, and Y. He. Thermal stability of recording inrlrmation at high densities. IEEE. Trans. Magn.vol. 33(2), p. 978, 1997
6[6]H, N. Bertram, H. Zhou, and R. Gustafson, Signal to noise ratio scaling and density limit estimates in longitudinal magnetic recording. IEEE. Trans. Magn. vol. 34(1), p. 1845,1998
7[7]H.N. Bertram and M. Williams. SNR and density limit estimates: a comparison longitudinal and perpendicular recording. IEEE. Trans. Magn . vol. 36(1), p. 4, Jan. 2000
8[8]H.J. Richer. Longitudianl recording at 10 to 20 Gb/in2 and beyond. IEEE. Trans. Magn. vol. 35(5), p. 2790, Sepr.1999.
9[9]C. Tang M. M. Chen, T. Yogi, et al. Gigabir density recording heads using anisotropy magnetoresistance films. IEEE.Trans. Magn. vol. 26(50, p. 16898, 1989
10[10]LU Zhi - hong, Li Tie, Qiu Jin -jun, et al. Improvement of Magneroresistive Chatacter of Nio / NiFeCo Cu / NiFeCo Exchange- biased Spin- valves Through Annealing.IN Magneric Field, Chinese Physics Letters, voll6 (1), p.65, 1999
