Proceedings of the Korean Magnestics Society Conference (한국자기학회:학술대회 개요집)

  • 2013.05a
  • /
  • Pages.15-16
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  • 2013
  • /
  • 2233-9485(pISSN)
  • /
  • 2233-9574(eISSN)
The Korean Magnetics Society (한국자기학회)
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Magnetization Behavior of Ultra-thin FexCo1-x Alloy on Cr (100) Surface

  • Hossain, M.B. (Department of Materials Science and Engineering, Chungnam National University) ;
  • Kim, C.G. (Department of Materials Science and Engineering, Chungnam National University) ;
  • Chun, B.S. (Division of Industrial Metrology, Korea Research Institute of Standards and Science) ;
  • Kim, W. (Division of Industrial Metrology, Korea Research Institute of Standards and Science) ;
  • Hwang, C.Y. (Division of Industrial Metrology, Korea Research Institute of Standards and Science)
  • Published : 2013.05.30
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Abstract

Magnetization behavior of ultra thin $Fe_xCo_{1-x}$ alloy (where x varies from 0 to 100) has been investigated as functions of composition on Cr (100) substrate by using in situ surface magneto optical Kerr effect (SMOKE). It's always show in plane uniaxial magnetic anisotropy at room temperature (RT) & Low temperature (LT). It is observed that composition dependent coercive force maximum at about 30 at % Co and 70 at % Co atomic ratio and minimum near equiatomic site. The relative magnetic moments as composition variation also show magnetization collapse near equiatomic site. The magnetization behaviors of Fe-Co alloy on Cr (100) due to composition varies are supported the order-disordering as well as structural stability bcc (ferromagnetic)/fcc (anti-ferromagnetic) phase stability magnetism.

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