Automation and Remote Control

, Volume 73, Issue 6, pp 1056–1064 | Cite as

A method to calculate the parameters of magnetization transition in hard discs with longitudinal recording

  • V. S. Semenov
Technical Tools in Control


The conditions for determination of the parameters of the saw-toothed transition under the action of an external magnetic field (process of recording) and under no external field (process of demagnetization) were presented with the use of the effective fields. Examples of calculating the parameters of the saw-toothed transitions for various values of the coercitive force of the magnetic medium at recording under the action of the magnetic field of the thin-film head and during the progress of demagnetization were given.


Remote Control Magnetization Transition Recording Track Transition Width Transition Position 
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  1. 1.
    Phillips, G.N. and Suzuki, T., MFM Imaging of Bit Transitions in 5 Gbit/in2 CoCrPtTa Media, IEEE Trans. Magn., 1998, vol. 34, no. 2, pp. 390–392.CrossRefGoogle Scholar
  2. 2.
    Abarra, E.N. and Suzuki, T., Magnetic Force Microscopy Studies of DC Erasure in a 5 Gbit/in2 Medium [CoCrPtTa/CrMo], IEEE Trans. Magn., 1998, vol. 34, no. 2, pp. 363–365.CrossRefGoogle Scholar
  3. 3.
    Curland, N. and Speliotis, D., Transition Region in Recorded Magnetization Patterns, J. Appl. Phys., 1971, vol. 41, pp. 1099–1101.CrossRefGoogle Scholar
  4. 4.
    White, R.M., The Materials Aspect of Magnetic Recording, JMMM, 1980, vol. 88, pp. 165–176.Google Scholar
  5. 5.
    Taylor, R.C., Charged Walls in Amorphous Magnetic Films, IEEE Trans. Magn., 1980, no. 4, pp. 902–904.Google Scholar
  6. 6.
    Freiser, M.J., On the Zigzag Form of Charged Domain Walls, IBM J. Res. Develop., 1979, vol. 29, pp. 330–338.CrossRefGoogle Scholar
  7. 7.
    Arnoldussen, T.C. and Tong, H.C., Zigzag Transitions Profiles, Noise, and Correlation Statistics in Highly Oriented Longitudinal Film Media, IEEE Trans. Magn., 1986, vol. 22, pp. 889–891.CrossRefGoogle Scholar
  8. 8.
    Semenov, V.S., Analysis of the Parameters of “Magnetic Disk-Magnetic Head” Pair for Magnetic Recording, Autom. Remote Control, 2007, vol. 68, no. 4, pp. 727–732.zbMATHCrossRefGoogle Scholar
  9. 9.
    Semenov, V.S., Studying the Structure of the Domain Boundaries for Development of the Thin-film Magnetic Nanoelements for Digital Recording, Doctoral (Eng.) Dissertation, Moscow: Inst. of Control Sci., Moscow, 2009.Google Scholar
  10. 10.
    Semenov, V.S., Magnetic Field of Thin Film Heads for Longitudinal Recording on Hard Disks, Autom. Remote Control, 2011, vol. 72, no. 8, pp. 1735–1744.MathSciNetCrossRefGoogle Scholar
  11. 11.
    Semenov, V.S., Charged Walls between Ferromagnetic Domains, Fiz. Metallov Metallovedenie, 1980, vol. 50, no. 4, pp. 520–525.Google Scholar
  12. 12.
    Glijer, P., Abbara, E.N., Kisker, H., and Suzuki, T., MFM Studies of Recording Phenomena in High Density Longitudinal Recordings, IEEE Trans. Magn., 1996, vol. 32, no. 5, pp. 3557–3562.CrossRefGoogle Scholar
  13. 13.
    Semenov, V.S., Structure and Energy of the Neel Domain Boundary, Fiz. Metallov Metallovedenie, 1992, no. 4, pp. 21–28.Google Scholar

Copyright information

© Pleiades Publishing, Ltd. 2012

Authors and Affiliations

  • V. S. Semenov
    • 1
  1. 1.Trapeznikov Institute of Control SciencesRussian Academy of SciencesMoscowRussia

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