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

doi:10.1109/20.801076

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

^*Corresponding author for this work

Research output: Contribution to journal › Article › peer-review

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 language	English
Pages (from-to)	3034-3036
Number of pages	3
Journal	IEEE Transactions on Magnetics
Volume	35
Issue number	5 PART 1
DOIs	https://doi.org/10.1109/20.801076
Publication status	Published - 1999

Keywords

Annealing in the air
Fept film
Order-disorder transition rate

ASJC Scopus subject areas

Electronic, Optical and Magnetic Materials
Electrical and Electronic Engineering

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10.1109/20.801076

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title = "Effects of annealing condition on the structural and magnetic properties of FePt thin films",

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.",

keywords = "Annealing in the air, Fept film, Order-disorder transition rate",

author = "Park, \{Chang Hoi\} and Na, \{Jong Gab\} and Jang, \{Pyung Woo\} and Lee, \{Seong Rae\}",

year = "1999",

doi = "10.1109/20.801076",

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T1 - Effects of annealing condition on the structural and magnetic properties of FePt thin films

AU - Park, Chang Hoi

AU - Na, Jong Gab

AU - Jang, Pyung Woo

AU - Lee, Seong Rae

PY - 1999

Y1 - 1999

N2 - 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.

AB - 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.

KW - Annealing in the air

KW - Fept film

KW - Order-disorder transition rate

UR - https://www.scopus.com/pages/publications/0033184377

U2 - 10.1109/20.801076

DO - 10.1109/20.801076

M3 - Article

AN - SCOPUS:0033184377

SN - 0018-9464

VL - 35

SP - 3034

EP - 3036

JO - IEEE Transactions on Magnetics

JF - IEEE Transactions on Magnetics

IS - 5 PART 1

ER -

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

Abstract

Keywords

ASJC Scopus subject areas

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