Domain walls and magnetic properties of very thin permalloy films for magnetoresistive sensors

M. A. Akhter*, D. J. Mapps, Y. Q. Ma, A. K. Petford-Long, R. Doole

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

12 Scopus citations

Abstract

The magnetic properties (coercivity and magnetoresistance) of very thin permalloy films were studied for their use in magnetoresistive (MR) sensors. Permalloy films were deposited under different conditions and a comparison was made in their properties. Domain walls in these films were studied using a specially modified TEM. Barkhausen noise was studied by differentiating the M-H characteristic and its origin is discussed in the context of the magnetic domain wall structures.

Original languageEnglish (US)
Pages (from-to)1147-1149
Number of pages3
JournalIeee Transactions on Magnetics
Volume34
Issue number4 PART 1
DOIs
StatePublished - 1998

Keywords

  • Barkhausen noise
  • Domain wall
  • Magnetoresistive sensors
  • Permalloy thin films

ASJC Scopus subject areas

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

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