The magnetic and electrical properties of rare-earth Sm3+ substituted Bi1.7Pb0.3Sr2Ca2-xSmxCu3O12 system

Ekicibil A., Coskun A., Ozcelik B., Kiymac K.

MODERN PHYSICS LETTERS B, cilt.19, sa.6, ss.331-340, 2005 (SCI-Expanded) identifier identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 19 Sayı: 6
  • Basım Tarihi: 2005
  • Doi Numarası: 10.1142/s0217984905008372
  • Dergi Adı: MODERN PHYSICS LETTERS B
  • Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Sayfa Sayıları: ss.331-340
  • Çukurova Üniversitesi Adresli: Evet

Özet

In the present work, the magnetic properties of high-T Bi1.7Pb0.3Sr2Ca2-xSmxCu3O12 system (x = 0.03) have been investigated, for different temperatures below T,. Substitution of Sm3+ for Ca2+ is found to change the superconducting properties of the system, despite the weak paramagnetic nature of the Sm3+ ion. The dc magnetization measurements performed on the compound reveal that the superconducting regions decrease with increasing temperature and magnetic field. The results are explained on the basis of a possible reduction of hole concentration with trivalent rare-eaxth ion substitution, and also on the basis of the magnetic nature of the substituted Sm3+ ions.