Effect of underlayer microstructure on the exchange coupling of Mumetal-A1 oxide-Co multilayer

Young Woo Lee, T. H. Lee, C. G. Kim, C. O. Kim, T. S. Yoon

Research output: Contribution to journalConference articlepeer-review

Abstract

Exchange coupling of Mumetal(Ni77Fe14Mo5Cu4 wt%)-Al oxide-Co multilayer has been investigated as Mumetal growing temperature increases from 20 °C to 90 °C. As Mumetal growing temperature increases, grain size and surface roughness increase simultaneously. The increase of grain size diminishes the exchange coupling until 40 °C, and the increase of roughness increases the exchange coupling after 40 °C. It is thought that grain size and roughness of the underlayer are competing factors for the interlayer exchange coupling of the magnetic multilayer.

Original languageEnglish
Pages (from-to)2788-2790
Number of pages3
JournalIEEE Transactions on Magnetics
Volume38
Issue number5 I
DOIs
StatePublished - Sep 2002
Event2002 International Magnetics Conference (Intermag 2002) - Amsterdam, Netherlands
Duration: 28 Apr 20022 May 2002

Bibliographical note

Funding Information:
Manuscript received February 11, 2002; revised May 21, 2002. This work was supported by the Korea Science and Engineering Foundation through the Research Center for Advanced Magnetic Materials (ReCAMM).

Keywords

  • Exchange coupling field
  • Grain boundary
  • Grain size
  • Surface roughness

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