Magnetic transitions in Nd1-xDyxMn2Ge2

Elerman Y., Kervan S., Duman E., Acet M.

JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS, cilt.251, sa.3, ss.251-259, 2002 (SCI-Expanded) identifier identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 251 Sayı: 3
  • Basım Tarihi: 2002
  • Doi Numarası: 10.1016/s0304-8853(02)00594-2
  • Dergi Adı: JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS
  • Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Sayfa Sayıları: ss.251-259
  • Anahtar Kelimeler: rare-earth magnetism, rare-earth compounds, transition metal compounds, magnetically ordered materials, phase transitions, magnetic phase diagram, NEUTRON-DIFFRACTION, PHASE-TRANSITIONS, DYMN2GE2, MOSSBAUER, NDMN2GE2
  • Ankara Üniversitesi Adresli: Hayır

Özet

The various magnetic structures of the ThCr2Si2 structured RMn2Ge2 (R: rare-earth) compounds can lead to numerous magnetic configurations by gradually substituting the rare-earth element by another lanthanide. In this study, the magnetic properties of Nd1-xDyxMn2Ge2 (0 less than or equal to x less than or equal to 1) compounds were investigated by means of temperature-dependent DC magnetization measurements in low external magnetic fields. The substitution of Dy for Nd leads to a linear decrease in the lattice constants, and the magnetic interactions in the Mn sublattice cross over from a ferromagnetic character to an antiferromagnetic one. At low temperatures, the rare-earth sublattice orders in various configurations that depend on the composition. The results are collected in a phase diagram. (C) 2002 Elsevier Science B.V. All rights reserved.