Abstract

In single crystal films of the Fe0,5Co0,5 alloys grown by the method of vacuum condensation, a metastable condition may be received that is similar to the completely disordering condition. Approximately during ten days after the condensation in the film at the room temperature the short range and then long range atomic ordering is developed. Simultaneously the changes of magnetic anisotropy, electroresistance and coercive force of the films were investigated. This investigations show that the appearance of the shot range atomic ordering increases the electroresistance of films and the long range atomic ordering reduces it. The dependence of coercive force from time to time at room temperature atomic ordering films Fe0,5Co0,5 alloys, and Fe0,75Co0,25. Found that the biggest change Hc (double) is observed in single-crystal films when changing mechanism of magnetization reverse. Most is a consequence of the changes to the crystallographic anisotropy.

Highlights

  • In single crystal films of the Fe0,5Co0,5 alloys grown by the method of vacuum condensation, a metastable condition may be received that is similar to the completely disordering condition

  • It is known that the processes of atomic ordering in ferromagnetic alloys with the high Curie temperature, presenting the phase transition of the second kind, proceeds comparatively fast

  • Single (001) films Fe0,5Co0,5 and Fe0,75Co0,25 were grown by the method of vacuum condensation on the surfaces of the splits of LiF and MgO crystals heating to 150 C

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Summary

Introduction

In single crystal films of the Fe0,5Co0,5 alloys grown by the method of vacuum condensation, a metastable condition may be received that is similar to the completely disordering condition. The changes of magnetic anisotropy, electroresistance and coercive force at natural aging were observed. According to these observations and the structure’s investigations it was shown that the alloy Fe0,5Co0,5 may be received in the disordering condition comparatively in the thin magnetic films.

Results
Conclusion

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