Effects of annealing condition on the structural and magnetic properties of FePt thin films

Chang Hoi Park, Jong Gab Na, Pyung Woo Jang, Seong Rae Lee

Research output: Contribution to journalArticle

16 Citations (Scopus)

Abstract

Equiatomic FePt films were deposited by a dc sputtering method and annealed in the air and in a vacuum at 350C for up to 60 min. The order-disorder transformation occurs almost entirely within 10 min and a very high coercivity of 6.8 kOe could be obtained in the air-annealed films while the transformation occured very slowly in the vacuum-annealed films. This higher transformation rate could be also verified in the X-ray diffraction analysis. The reason for the higher rate seems to be the diffusion of oxygen atoms and possible mechanism was discussed.

Original languageEnglish
Pages (from-to)3034-3036
Number of pages3
JournalIEEE Transactions on Magnetics
Volume35
Issue number5 PART 1
DOIs
Publication statusPublished - 1999 Dec 1

Fingerprint

Structural properties
Magnetic properties
Annealing
magnetic properties
Thin films
annealing
thin films
Vacuum
order-disorder transformations
vacuum
Order disorder transitions
air
Air
Coercive force
X ray diffraction analysis
coercivity
Sputtering
oxygen atoms
sputtering
Oxygen

Keywords

  • Annealing in the air
  • Fept film
  • Order-disorder transition rate

ASJC Scopus subject areas

  • Electrical and Electronic Engineering
  • Physics and Astronomy (miscellaneous)

Cite this

Effects of annealing condition on the structural and magnetic properties of FePt thin films. / Park, Chang Hoi; Na, Jong Gab; Jang, Pyung Woo; Lee, Seong Rae.

In: IEEE Transactions on Magnetics, Vol. 35, No. 5 PART 1, 01.12.1999, p. 3034-3036.

Research output: Contribution to journalArticle

Park, Chang Hoi ; Na, Jong Gab ; Jang, Pyung Woo ; Lee, Seong Rae. / Effects of annealing condition on the structural and magnetic properties of FePt thin films. In: IEEE Transactions on Magnetics. 1999 ; Vol. 35, No. 5 PART 1. pp. 3034-3036.
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