Journal of Magnetics

The Korean Magnetics Society (한국자기학회)
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Structural and Magnetic Properties of Epitaxial FexCo100-x Alloys Grown on Cr Substrate

  • 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.D. (Division of Industrial Metrology, Korea Research Institute of Standards and Science) ;
  • Hwang, C. (Division of Industrial Metrology, Korea Research Institute of Standards and Science)
  • Received : 2013.10.14
  • Accepted : 2013.11.07
  • Published : 2014.03.31
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Abstract

We report the correlation between the magnetic properties and lattice parameter of $Fe_xCo_{100-x}$ alloys as a function of constituent concentration. The saturation magnetization increases with Fe content and has a maximum value at approximately x=70 at.%. However, collapse in relative saturation magnetization is observed at approximately 30 at.% to 70 at.% of Fe in $Fe_xCo_{100-x}$ alloys. The collapse is due to the formation of Co-Co and Fe-Fe antibonding states instead of Fe-Co bonds. The lattice parameter also shrinks at approximately 30 at.% to 70 at.% of Fe. This shrinkage is due to an increase in the number of nearest neighbor antisite atoms, which then leads to a decrease in the long range order parameter.

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References

  1. T. Nishizawa and K. Ishida, Bull. Alloy Phase Diagr. 5, 250 (1984). https://doi.org/10.1007/BF02868548
  2. H. Ishibashi, K. Harada, M. Kogachi, and Satoru Noguchi, J. Magn. Magn. Mater. 272, 774 (2004).
  3. R. M. Bozarth, Ferromagnetism, and Van Nostrand, New Jersey (1951).
  4. C. J. Gutierrez, J. J. Krebs, and G. A. Prinz, Appl. Phys. Lett. 61, 2476 (1992). https://doi.org/10.1063/1.108157
  5. A. Dittschar, M. Zharnikiv, W. Kuch, M. Lin, C. M. Schneider, and J. Kirschner, Phys. Rev. B 57, 3209 (1998). https://doi.org/10.1103/PhysRevB.57.R3209
  6. T. Ambrose, J. J. Krebs, K. Bussmann, and G. A. Prinz, J. Appl. Phys. 85, 5066 (1999). https://doi.org/10.1063/1.370092
  7. M. N. Baibich, J. M. Broto, A. Fert, F. Nguyen van Dau, F. Petroff, P. Etienne, G. Creuzet, A. Friederich, and J. Chazelas, Phys. Rev. Lett. 61, 2472 (1988). https://doi.org/10.1103/PhysRevLett.61.2472
  8. F. Brussing, B. Toperverg, K. Zhernenkov, A. Devishvili, H. Zabel, M. Wolff, K. Theis-Brohl, C. Wiemann, A. Kaiser, and C. M. Schneider, Phys. Rev. B 85, 174409 (2012). https://doi.org/10.1103/PhysRevB.85.174409
  9. J. Camarero, J. J. de Miguel, R. Miranda, and A Hernando, J. Phys.: Condens. Matter. 12, 7713 (2000). https://doi.org/10.1088/0953-8984/12/35/306
  10. H.-G. Min, S.-H. Kim, M. Li, J. B. Wedding, and G.-C. Wang, Surf. Sci. 400, 19 (1998). https://doi.org/10.1016/S0039-6028(97)00837-6
  11. S. P. Repetsky, V. A. Tatarento, I. M. Melnyk, and E. G. Len, Solid Matter 55, 533 (2010).
  12. M. Mizuno, H. Araki, and Y. Shirai, Mater. Trans. 47, 2646 (2006). https://doi.org/10.2320/matertrans.47.2646
  13. M. Kogachi, N. Tadachi, H. Kohata, and H. Ishibashi, Intermetallics 13, 535 (2005). https://doi.org/10.1016/j.intermet.2004.09.012

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