Magnetic properties of Sm 1-xTb xNi 4B compounds

NANE O., ÖZÇELİK B., Kervan S., Topal U.

Journal of Superconductivity and Novel Magnetism, cilt.25, sa.4, ss.1065-1070, 2012 (SCI-Expanded) identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 25 Sayı: 4
  • Basım Tarihi: 2012
  • Doi Numarası: 10.1007/s10948-011-1361-8
  • Dergi Adı: Journal of Superconductivity and Novel Magnetism
  • Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Sayfa Sayıları: ss.1065-1070
  • Anahtar Kelimeler: Ac-Susceptibility, Dc-Magnetization, Magnetic materials, Magnetic properties, X-ray diffraction
  • Hakkari Üniversitesi Adresli: Evet

Özet

Physical properties of the Sm 1-xTb xNi 4B (0 ≤ x ≤ 0.8) compounds have been investigated by means of the X-ray powder diffraction, AC-susceptibility and DC-magnetization techniques. All the compounds studied crystallize in CeCo4B-type structure with P6/mmm space group. The substitution of Tb for Sm leads to a decrease of the unit-cell parameters a, c and the unit-cell volume V. The magnetic phase transition temperatures are found as 39, 30, 26, 22 and 15 K, for x = 0, 0.2, 0.4, 0.6 and 0.8, respectively. In addition, we have seen the second magnetic phase transition around 230 K, at the ac-susceptibility results. We have concluded that this behavior may arise from the Tb-Tb interaction in crystal structure. © 2012 Springer Science+Business Media, LLC.