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Article Dans Une Revue Journal of Applied Physics Année : 2013

Extreme doping sensitivity of the ordering direction in GdCo12-xFexB6

Résumé

Gd-155 Mossbauer spectroscopy has been used to investigate the magnetic ordering direction of GdCo12-xFexB6 (0 <= x <= 3) at 5K. The moment orientation was found to be extremely sensitive to doping with as little as similar to 4% Fe doping (0.5 Fe/f.u.) causing the moment orientation to change from the c-axis to the basal plane. Including results from earlier Fe-57-doping work suggests that the axial-basal boundary may lie below 0.5% Fe doping (similar to 0.06 Fe/f.u.). As the ordering directions for the other R Co12B6 compounds have all been derived from Fe-57-doped samples, a re-evaluation of these compounds may be necessary.
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Dates et versions

hal-00954674 , version 1 (03-03-2014)

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Citer

Nicolas R. Lee-Hone, Dominic H. Ryan, Olivier Isnard, Leopold Diop, J. M. Cadogan. Extreme doping sensitivity of the ordering direction in GdCo12-xFexB6. Journal of Applied Physics, 2013, 113 (17), pp.17E119. ⟨10.1063/1.4794373⟩. ⟨hal-00954674⟩

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