Microstructure and magnetic properties of oxidized Fe-Pt films with high rate order-disorder transformation

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

Research output: Contribution to journalArticle

6 Citations (Scopus)

Abstract

Structural and magnetic properties of air-annealed Fe 1-x Pt x films with a high rate order-disorder transformation were analyzed by transmission electron microscopy, Auger electron microscopy, Rutherford backscattering spectroscopy and vibrating sample magnetometer. The air-annealed films consisted of three layers, that is, crystalline Fe oxide layer, Fe-Pt upper layer with small grains, and Fe-Pt bottom layer with large grains from the film surface. Those layers were nonmagnetic, magnetically hard, and with magnetically hard and soft phase, respectively. The Fe content in Fe-Pt metallic layer decreased and then increased with increasing film depth from the oxide/metal interface.

Original languageEnglish
Pages (from-to)1312-1314
Number of pages3
JournalIEEE Transactions on Magnetics
Volume37
Issue number4 I
DOIs
Publication statusPublished - 2001 Jul 1

Fingerprint

order-disorder transformations
Order disorder transitions
Magnetic properties
magnetic properties
microstructure
Microstructure
Oxides
Rutherford backscattering spectroscopy
Magnetometers
Air
Electron microscopy
Structural properties
Metals
air
Crystalline materials
Transmission electron microscopy
magnetometers
metal oxides
backscattering
electron microscopy

Keywords

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

ASJC Scopus subject areas

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

Cite this

Microstructure and magnetic properties of oxidized Fe-Pt films with high rate order-disorder transformation. / Na, Kyung Hwan; Na, Jong Gab; Kim, Hi Jung; Jang, Pyung Woo; Kim, Jong Ryoul; Lee, Seong Rae.

In: IEEE Transactions on Magnetics, Vol. 37, No. 4 I, 01.07.2001, p. 1312-1314.

Research output: Contribution to journalArticle

Na, Kyung Hwan ; Na, Jong Gab ; Kim, Hi Jung ; Jang, Pyung Woo ; Kim, Jong Ryoul ; Lee, Seong Rae. / Microstructure and magnetic properties of oxidized Fe-Pt films with high rate order-disorder transformation. In: IEEE Transactions on Magnetics. 2001 ; Vol. 37, No. 4 I. pp. 1312-1314.
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