Data storage and retrieval using perpendicular media and magnetoresistive read transducer

Kuoksan Ho, Matthew H. Kane, Bruce M. Lairson, George I. Noyes, John C. Harig, Young K. Kim

Research output: Contribution to journalArticlepeer-review

3 Citations (Scopus)


We have investigated magnetic recording on multilayer perpendicular media using a conventional peak detect channel and a commercial magnetoresistive recording head. A linitc impulse response filter was used to equalize the impulse response from perpendicular media into a unipolar pulse. Equalized pulses had a PW50 of 174 nm and a D50 of 131 kfci. Without write precompensation, a linear density of 204 kbits per inch (kbpi) with a 3.3 ns error window margin and a data transfer rate of 75 Mbits/s was measured with an error rate of 4 × 10-7. The signal waveform was stable and had good up-down amplitude symmetry.

Original languageEnglish
Pages (from-to)2538-2542
Number of pages5
JournalIEEE Transactions on Magnetics
Issue number4
Publication statusPublished - 1997
Externally publishedYes

Bibliographical note

Funding Information:
Manuscript received November 8, 1996; revised March 7, 1997. This work was supported by the National Science Foundation under Grant LCS-9408882. K. Ho, M. H. Kane, and B. M. Lairson are with the Department of Mechanical Engineering and Materials Science, Rice University, Houston, TX 77005 USA. G. I Noyes, J. C. Harig, and Y. K. Kim are with Quantum Corporation, Louisville, CO 80027 USA. Publisher Item Identifier S 0018-9464(97)04875-9.


  • Magnetoresistive device
  • Perpendicular magnetic recording

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Electrical and Electronic Engineering


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