Write performance of heads with a 2.1-tesla conife pole

Keishi Ohashi; Noboru Morita; Tadaaki Tsuda; Yoshihiro Nonaka

doi:10.1109/20.800883

Write performance of heads with a 2.1-tesla conife pole

Keishi Ohashi, Noboru Morita, Tadaaki Tsuda, Yoshihiro Nonaka

Research output: Contribution to journal › Article

30 Citations (Scopus)

Abstract

We examined the write performance of heads with a CoNiFe /NiFe composite write pole. The saturation induction B_s of the CoNiFe film was 2.1 T (21 kG). The CoNiFe layer thickness was typically 0.5-0.6 μm; and the rest of the write pole was composed of Ni₈₀Fe₂₀. The dual high B_s layer structure with the CoNiFe films on both sides of the write gap gave excellent overwrite performance. It was over 30 dB for a medium that had a high coercivity of 560 kA/m (7.0 kOe).

Original language	English
Pages (from-to)	2538-2540
Number of pages	3
Journal	IEEE Transactions on Magnetics
Volume	35
Issue number	5 PART 1
DOIs	https://doi.org/10.1109/20.800883
Publication status	Published - 1999 Dec 1
Externally published	Yes

Keywords

High bs material
Overwrite
Soft magnetic material
Write head

ASJC Scopus subject areas

Electronic, Optical and Magnetic Materials
Electrical and Electronic Engineering

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Ohashi, K., Morita, N., Tsuda, T., & Nonaka, Y. (1999). Write performance of heads with a 2.1-tesla conife pole. IEEE Transactions on Magnetics, 35(5 PART 1), 2538-2540. https://doi.org/10.1109/20.800883

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