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Patterned media for future magnetic data storage

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Abstract

One strategy to delay the onset of superparamagnetism and achieve magnetic storage densities approaching 1 Tb/in.2 is the use of lithographically patterned magnetic media. While one of the main advantages enjoyed by magnetic recording is low cost due to use of featureless media, there are several advantages that may be realized by patterning the medium in a hard disk drive. The commercial success of patterned media will of course depend on the relative costs and gains. In particular, there are three main types of disk patterning proposed, each requiring a different length scale of patterned feature. Patterning of servo marks for maintaining the head position on-track, the fabrication of discrete tracks, and the fabrication of discrete bits have all been proposed and will be discussed. For discrete bit recording single domain magnetic islands are required, and one approach to fabricating these, by depositing magnetic films onto prepatterned substrates, is described. The switching characteristics of the islands as compared to those of the full film, along with initial recording results are presented.

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References

  • Albrecht M, Moser A, Rettner CT, Anders S, Thomson T, Terris BD (2002a) Appl Phys Lett 80:3409

    Article  Google Scholar 

  • Albrecht M, Rettner CT, Moser A, Best ME, Terris BD (2002b) Appl Phys Lett 81:2875

    Article  Google Scholar 

  • Albrecht M, Ganesan S, Rettner CT, Moser A, Best ME, White RL, Terris BD (2003) IEEE Trans Magn 39:2323

    Article  Google Scholar 

  • Bandic ZZ, Xu H, Albrecht TR (2003a) Appl Phys Lett 82:145

    Article  Google Scholar 

  • Bandic ZZ, Xu H, Hsu YM, Albrecht TR (2003b) IEEE Trans Magn 39:2231

    Article  Google Scholar 

  • Bertram HN (1994) Theory of magnetic recording. Cambridge University Press, Cambridge

    Google Scholar 

  • Coffey KR, Thomson T, Thiele JU (2003) J Appl Phys 93:8471

    Article  Google Scholar 

  • Dittrich R, Hu G, Schrefl T, Thomson T, Suess D, Terris BD, Fidler J (2005) J Appl Phys 97:10J705

    Article  Google Scholar 

  • Driskill-Smith AA (2004) Emerging lithographic technologies, vol VIII. In: Mackay RS (ed) Proceedings of the SPIE, 5374:16

  • Hu G, Thomson T, Albrecht M, Best ME, Terris BD, Rettner CT, Raoux S, McClelland GM, Hart MW (2004) J Appl Phys 95:7013

    Article  Google Scholar 

  • Hu G, Thomson T, Rettner CT, Terris BD (2005a) IEEE Trans Magn 41:3589

    Article  Google Scholar 

  • Hu G, Thomson T, Rettner CT, Raoux S, Terris BD (2005b) J Appl Phys 97:10J702

    Article  Google Scholar 

  • Hughes GF (2003) IEEE Trans Magn 39:2564

    Article  Google Scholar 

  • Ishida T, Morita O, Noda M, Seko S, Tanaka S, Ishioka H (1993) Ieice Trans Fundam Electron Commu Comput Sci E76A:1161

    Google Scholar 

  • Lodder JC (2004) J Magn Magn Mater 272–276:1692

    Article  Google Scholar 

  • Lohau J, Moser A, Rettner CT, Best ME, Terris BD (2001a) IEEE Trans Magn 37:1652

    Article  Google Scholar 

  • Lohau J, Moser A, Rettner CT, Best ME, Terris BD (2001b) Appl Phys Lett 78:990

    Article  Google Scholar 

  • McClelland GM, Hart MW, Rettner CT, Best ME, Carter KR, Terris BD (2002) Appl Phys Lett 81:1483

    Article  Google Scholar 

  • Moritz J, Landis S, Toussaint JC, Bayle-Guillemaud P, Rodmacq B, Casali G, Lebib A, Chen Y, Nozieres JP, Dieny B (2002) IEEE Trans Magn 38:1731

    Article  Google Scholar 

  • Moritz J, Buda L, Dieny B, Nozieres JP, van de Veerdonk RJM, Crawford TM, Weller D (2004) Appl Phys Lett 84:1519

    Article  Google Scholar 

  • Moser A, Weller D (2001) Thermal effects in high-density recording media in physics of high density magnetic recording. In: Plummer M, van Ek J, Weller D (eds) Springer, Berlin Heidelberg New york

  • Moser A, Takano K, Margulies DT, Albrecht M, Sonobe Y, Ikeda Y, Sun SH, Fullerton EE (2002) J Phys D Appl Phys 35:R157

    Article  Google Scholar 

  • Rettner CT, Best ME, Terris BD (2001) IEEE Trans Magn 37:1649

    Article  Google Scholar 

  • Rettner CT, Anders S, Thomson T, Albrecht M, Ikeda Y, Best ME, Terris BD (2002) IEEE Trans Magn 38:1725

    Article  Google Scholar 

  • Ross C (2001) Annu Rev Mater Res 31:203

    Article  Google Scholar 

  • Sharrock MP, McKinney JT (1981) IEEE Trans Magn 17:3020

    Article  Google Scholar 

  • Stoev K, Liu F, Chen Y, Dang X, Luo P, Chen J, Wang J, Kung K, Lederman M, Re M, Choe G, Zhou JN, Yu M (2003) J Appl Phys 93:6552

    Article  Google Scholar 

  • Sugita R, Muranoi T, Nishikawa M, Nagao M (2003) J Appl Phys 93:7008

    Article  Google Scholar 

  • Terris BD, Thomson T (2005) J Phys D Appl Phys 38:R199

    Google Scholar 

  • Wachenschwanz D, Jiang W, Roddick E, Homola A, Dorsey P, Harper B, Treves D, Bajorek C (2005) IEEE Trans Magn 41:670

    Article  Google Scholar 

  • Weller D, Moser A (1999) IEEE Trans Magn 35:4423

    Article  Google Scholar 

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Acknowledgements

We thank our many colleagues at IBM and Hitachi Global Storage Technologies for their contributions to this work, including in particular M. Albrecht, Z. Bandic, M. Best, A. Driskill-Smith, R. Fontana, M. Hart, G. McClelland, S. Raoux, and C. Rettner.

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Authors and Affiliations

  1. Hitachi Global Storage Technologies, San Jose Research Center, San Jose, CA, 95120, USA

    B. D. Terris, T. Thomson & G. Hu

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  1. B. D. Terris
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  2. T. Thomson
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  3. G. Hu
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Correspondence to B. D. Terris.

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Terris, B.D., Thomson, T. & Hu, G. Patterned media for future magnetic data storage. Microsyst Technol 13, 189–196 (2007). https://doi.org/10.1007/s00542-006-0144-9

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