Magnetic properties and high-frequency responses of high moment fetan/aln laminates for high-data-rate magnetic recording

Jongill Hong, Akio Furukawa, Nianxiang Sun, Shan X. Wang, Craig A. Grimes, Sanghamitra Sahu

Research output: Contribution to journalArticle

6 Citations (Scopus)

Abstract

Soft magnetic FeTaN and novel FeTaN/AIN multilayer films with a saturation flux density of ∼20 kG are obtained on both planar and sloping substrates. Flat frequency responses extend over 500 MHz for as-deposited 1000 Å-thick FeTaN films. The 3 dB roll-off frequency for as-deposited 1 μm-thick (FeTaN/ AlN)10 laminates is only ∼330 MHz. However, when the laminates are patterned into 20 μm-wide strips along the hard axis, the frequency response improves and the 3 dB roll-off frequency is over 500 MHz, which offers the promise of data rates of over 1 Gb/sec.

Original languageEnglish
Pages (from-to)2502-2504
Number of pages3
JournalIEEE Transactions on Magnetics
Volume35
Issue number5 PART 1
DOIs
Publication statusPublished - 1999

All Science Journal Classification (ASJC) codes

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

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