Surface topology and magnetic properties of FePt alloyed thin films

Kyung Hwan Na, Jong Gab Na, Hi Jung Kim, Pyung Woo Jang, Seong Rae Lee

Research output: Contribution to journalArticle

6 Citations (Scopus)

Abstract

Dependency of Ar pressure on the surface topology and magnetic properties of as-deposited and air-annealed 120 nm thick FePt thin films were investigated. The higher the Ar pressure was, the rougher the surface of as-deposited films became. After annealing in the air, the surface became much rougher which was due to formation of Fe oxide on the surface. The oxidation was much accelerated in the films with rougher surface. This accelerated oxidation resulted in a high order-disorder transformation rate and higher coercivity.

Original languageEnglish
Pages (from-to)1302-1305
Number of pages4
JournalIEEE Transactions on Magnetics
Volume37
Issue number4 I
DOIs
Publication statusPublished - 2001 Jul 1

Fingerprint

Magnetic properties
topology
Topology
magnetic properties
Thin films
thin films
order-disorder transformations
Oxidation
oxidation
Order disorder transitions
air
Air
Coercive force
Thick films
Oxides
coercivity
Annealing
annealing
oxides

Keywords

  • Air-annealing
  • FePt film
  • L1 structure
  • Order-disorder transformation
  • Surface topology

ASJC Scopus subject areas

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

Cite this

Surface topology and magnetic properties of FePt alloyed thin films. / Na, Kyung Hwan; Na, Jong Gab; Kim, Hi Jung; Jang, Pyung Woo; Lee, Seong Rae.

In: IEEE Transactions on Magnetics, Vol. 37, No. 4 I, 01.07.2001, p. 1302-1305.

Research output: Contribution to journalArticle

Na, Kyung Hwan ; Na, Jong Gab ; Kim, Hi Jung ; Jang, Pyung Woo ; Lee, Seong Rae. / Surface topology and magnetic properties of FePt alloyed thin films. In: IEEE Transactions on Magnetics. 2001 ; Vol. 37, No. 4 I. pp. 1302-1305.
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