Ferrimagnetism in GdCo(12-x)Fe(x)B6.

نویسندگان

  • L V B Diop
  • O Isnard
  • N R Lee-Hone
  • D H Ryan
  • J M Cadogan
چکیده

The effects of iron substitution on the structural and magnetic properties of the GdCo(12-x)Fe(x)B6 (0 ≤ x ≤ 3) series of compounds have been studied. All of the compounds form in the rhombohedral SrNi12B6-type structure and exhibit ferrimagnetic behaviour below room temperature: T(C) decreases from 158 K for x = 0 to 93 K for x = 3. (155)Gd Mössbauer spectroscopy indicates that the easy magnetization axis changes from axial to basal-plane upon substitution of Fe for Co. This observation has been confirmed using neutron powder diffraction. The axial to basal-plane transition is remarkably sensitive to the Fe content and comparison with earlier (57)Fe-doping studies suggests that the boundary lies below x = 0.1.

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عنوان ژورنال:
  • Journal of physics. Condensed matter : an Institute of Physics journal

دوره 25 31  شماره 

صفحات  -

تاریخ انتشار 2013