Influence of Ho substitution for Nd on magnetic properties of the Nd1-xHoxMn2Ge2 germanides


Kervan N., Kilic A., Kervan S., Gencer A.

SOLID STATE COMMUNICATIONS, cilt.138, sa.2, ss.55-59, 2006 (SCI İndekslerine Giren Dergi) identifier identifier

  • Cilt numarası: 138 Konu: 2
  • Basım Tarihi: 2006
  • Doi Numarası: 10.1016/j.ssc.2006.02.010
  • Dergi Adı: SOLID STATE COMMUNICATIONS
  • Sayfa Sayıları: ss.55-59

Özet

The structure and magnetic properties of Nd1-xHoxMn2Ge2 (0.0 <= x <= 1.0) germanides were studied by X-ray diffraction (XRD), differential scanning calorimetry (DSC) techniques and AC magnetic susceptibility measurements. All compounds crystallize in the ThCr2Si2-type structure with the space group 14/mmm. Substitution of Ho for Nd leads to a linear decrease in the lattice constants and the unit cell volume, and the magnetic interactions in the Mn sublattice cross over from a ferromagnetic character to an anti ferromagnetic one. A typical SmMn2Ge2-like behavior is observed for x = 0.6 and 0.8. The results are collected in a phase diagram. (c) 2006 Elsevier Ltd. All rights reserved.