Magnetic interactions in Pr1-xTbxMn2Ge2

Duman E., Acet M., Elerman Y., Elmali A., Wassermann E.

JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS, cilt.238, sa.1, ss.11-21, 2002 (SCI-Expanded) identifier identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 238 Sayı: 1
  • Basım Tarihi: 2002
  • Doi Numarası: 10.1016/s0304-8853(01)00823-x
  • Dergi Adı: JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS
  • Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Sayfa Sayıları: ss.11-21
  • Anahtar Kelimeler: rare earth magnetism, rare earth compounds, pinning, magnetic transitions in rare earth compounds, layered magnetic structures, DOMINANT ANTIFERROMAGNETIC COMPONENTS, NEUTRON-DIFFRACTION, RMN2GE2 COMPOUNDS, PHASE-DIAGRAM, MN PLANES, SYSTEM, EARTH, HO, ER, LU
  • Ankara Üniversitesi Adresli: Hayır

Özet

The magnetic moments in the rare earth and Mn sublattices of RMn2Ge2, where R is a rare earth element, feature a variety of ordering configurations. In PrMn2Ge2 and TbMn2Ge2, the interlayer magnetic coupling in the Mn sublattice is, respectively, ferromagnetic and antiferromagnetic below about 350 K. At low temperatures, the rare earth sublattice also orders and reconfigures the ordering in the Mn sublattice. In this study, we investigate the variations in the magnetic properties of Pr1-xTbxMn2Ge2 as a function of rare earth concentration by examining the evolution of the features in the temperature dependence of the magnetization. The results of earlier neutron diffraction and Mossbauer studies on samples with x = 0 and 1 are also used for interpreting the magnetization data and to give an account of the competing effects between various magnetic structures in the Mn and rare earth sublattices. The results are summarized in the Pr1-xTbxMn2Ge2 magnetic phase diagram. (C) 2002 Elsevier Science B.V. All rights reserved.