Magnetic properties of the Pr(1-x)Gd(x)Co(4)B compounds

Kervan N., Kervan S., Gencer A.

JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS, cilt.320, sa.21, ss.2839-2843, 2008 (SCI-Expanded) identifier identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 320 Sayı: 21
  • Basım Tarihi: 2008
  • Doi Numarası: 10.1016/j.jmmm.2008.06.036
  • Dergi Adı: JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS
  • Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Sayfa Sayıları: ss.2839-2843
  • Anahtar Kelimeler: magnetically ordered material, magnetic property, X-ray diffraction (XRD), differential scanning calorimetry (DSC), RCO4B COMPOUNDS, CRYSTAL, DY, ND, DIFFRACTION, GD, EXCHANGE, BEHAVIOR, FIELD, PR
  • Ankara Üniversitesi Adresli: Evet

Özet

In this work, we have investigated the effect of the substitution of Gd for Pr on the crystal structure and magnetic properties of the Pr1 xGdxCo4B compounds for 0pxp1 using X- ray powder diffraction, magnetic measurements, and differential scanning calorimetry ( DSC). These compounds have hexagonal CeCo4B- type structure with the space group P6/ mmm. The substitution of Gd for Pr leads to a decrease of the unit- cell parameters a and the unit- cell volume V, while the unit- cell parameter c increases slightly. Magnetic measurements indicate that all samples are ordered magnetically below room temperature. The Curie temperatures determined by DSC technique increase as Pr is substituted by Gd. The saturation magnetization at 5 K decreases upon Gd substitution up to x 0.6, and then increases again. Crown Copyright (c) 2008 Published by Elsevier B. V. All rights reserved.