Effects of the substitution of gadolinium for neodymium on the crystal and magnetic properties of the Nd(1-x)Gd(x)Co(4)B compounds

Kervan N., Kervan S., Gencer A.

JOURNAL OF PHYSICS AND CHEMISTRY OF SOLIDS, cilt.69, sa.11, ss.2791-2795, 2008 (SCI-Expanded) identifier identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 69 Sayı: 11
  • Basım Tarihi: 2008
  • Doi Numarası: 10.1016/j.jpcs.2008.07.008
  • Dergi Adı: JOURNAL OF PHYSICS AND CHEMISTRY OF SOLIDS
  • Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Sayfa Sayıları: ss.2791-2795
  • Anahtar Kelimeler: Magnetic materials, Differential scanning calorimetry (DSC), X-ray diffraction, Magnetic properties, RCO4B COMPOUNDS, DY, ND, GD, FIELD, PR, HO, TB
  • Ankara Üniversitesi Adresli: Evet

Özet

The crystal and magnetic properties of the Nd(1-x)Gd(x)Co(4)B compounds for 0 <= x <= 1 have been studied by X-ray powder diffraction, magnetization and differential scanning calorimetry (DSC) measurements. These compounds crystallize in a hexagonal CeCo(4)B-type structure with the P6/mmm space group. The substitution of Gd for Nd leads to a decrease of the unit-cell parameter a and the unit-cell volume V, while the unit-cell parameter c remains almost constant. Magnetic measurernents indicate that all samples are ordered magnetically below room temperature. The Curie temperatures determined by the DSC technique increase linearly as Nd is substituted by Gd. The Saturation magnetization at 5 K decreases upon the Gd substitution up to x = 0.6, and then increases again. Crown Copyright (C) 2008 Published by Elsevier Ltd. All rights reserved.