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Nanostructured High-Anisotropy Materials for High-Density Magnetic Recording

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Functional Nanostructures

Part of the book series: Nanostructure Science and Technology ((NST))

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Abstract

Magnetic recording is widely used in infocom technologies and consumer electronic products. The magnetic disk drive featuring a total storage capability of 5 MB at a recording density of 2 Kbit/in.2 was invented at IBM in 1956 using longitudinal magnetic recording (LMR) mode, which aligned the magnetization of the recording bits horizontally parallel to the surface of the disk. The area! densities of hard disk drives increased over 100% per annum during the late 1990s as shown in Fig. 1.

Demonstrated areal density trend (The data for longitudinal magnetic recording were reprinted with permission of Hitachi Global Storage technologies. From Page 19 of HDD Roadmap, http://www.hitachigst.com/hdd/hddpdf/tech/hdd_technology2003.pdf)

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Authors and Affiliations

  1. Data Storage Institute, Singapore, 117608

    J. S. Chen

  2. Department of Material Science and Engineering, National University of Singapore, Singapore, 119260

    J. S. Chen, C. J. Sun & G. M. Chow

  3. Materials Science and Technology Division, Oak Ridge National Laboratory, Oak Ridge, Tennessee, 37831

    C. J. Sun

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    Sudipta Seal

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Chen, J.S., Sun, C.J., Chow, G.M. (2008). Nanostructured High-Anisotropy Materials for High-Density Magnetic Recording. In: Seal, S. (eds) Functional Nanostructures. Nanostructure Science and Technology. Springer, New York, NY. https://doi.org/10.1007/978-0-387-48805-9_7

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