Neutron diffraction studies of Ho1-xYxNi2B2C compounds

L.J. Chang, C.V. Tomy, D.M.K. Paul, N.H. Andersen, M. Yethiraj

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    Neutron diffraction measurements have been carried out to investigate the nature of magnetic ordering in Ho(1-x)Y(x)Ni(2)B(2)C (x = 0, 0.1 and 0.2) compounds. HoNi(2)B(2)C shows a complex type of magnetic ordering below the superconducting transition, with a commensurate antiferromagnetic ordering of the Ho moments below 5 K and a modulation of the magnetic ordering along a- and/or c-direction between 5 K < T < 8.5 K. The substitution of Y for Ho alters the commensurate nature of the Ho ordering. In Ho(0.9)Y(0.1)Ni(2)B(2)C, satellite peaks corresponding to c-modulation appear below T(N) and exist down to 2 K, together with the principal Bragg peaks. However, when the Y concentration is increased to 20%, the principal Bragg peaks disappear and only the c-modulated satellite magnetic peaks are observed below T(N).
    Original languageEnglish
    JournalPhysica B: Condensed Matter
    Issue number1-4
    Pages (from-to)119-122
    Publication statusPublished - 1996


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