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Journal of Materials Science

, Volume 42, Issue 16, pp 6887–6894 | Cite as

The influence of alloying Fe59Pt41 thin films with Co on their magnetic and microstructural properties

  • Yu Cheng LaiEmail author
  • Yen Hwei Chang
  • Yen Chia Chen
  • Hui-Jan Lin
  • Guo Jo Chen
Article

Abstract

This study investigates how the addition of Co to a Fe59Pt41 alloy with compositions in the range of Fe59Pt41–Co59Pt41 affects the crystallographic ordering temperatures and magnetic properties of sputter-deposited films. Introducing Co into the (Fe1−xCox)59Pt41 film affects the activation energy of atomic migration and grain growth, thus leading to a higher annealing temperature of the L10 phase formation. At a Co concentration of x = 0.2, the saturation magnetization was maximum, at 1,480 emu/cm3, and the (Fe0.8Co0.2)59Pt41 film exhibited a coercivity of about 4 kOe.

Keywords

Inductively Couple Plasma Mass Spectrometry Ternary Alloy FePt CoPt Alloy Film 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

Notes

Acknowledgments

The authors would like to thank the National Science Council of the Republic of China for the financial support of project NSC 95-2221-E-006-121.

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Copyright information

© Springer Science+Business Media, LLC 2007

Authors and Affiliations

  • Yu Cheng Lai
    • 1
    Email author
  • Yen Hwei Chang
    • 1
  • Yen Chia Chen
    • 1
  • Hui-Jan Lin
    • 1
  • Guo Jo Chen
    • 2
  1. 1.Department of Material Science and EngineeringNational Cheng Kung UniversityTainanTaiwan, ROC
  2. 2.Department of Material Science and EngineeringI-Shou UniversityKaohsiung CountyTaiwan, ROC

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