Magnetocaloric effect in the La0.62Bi0.05Ca0.33MnO3 compound

Gencer H., ATALAY S., ADIGUZEL H. İ., KOLAT V. S.

PHYSICA B-CONDENSED MATTER, cilt.357, ss.326-333, 2005 (SCI-Expanded) identifier identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 357
  • Basım Tarihi: 2005
  • Doi Numarası: 10.1016/j.physb.2004.11.084
  • Dergi Adı: PHYSICA B-CONDENSED MATTER
  • Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Sayfa Sayıları: ss.326-333
  • Anahtar Kelimeler: magnetocaloric effect, manganites, MAGNETORESISTANCE, BEHAVIOR
  • İnönü Üniversitesi Adresli: Evet

Özet

Bi-doped lanthanum manganite with chemical composition of La0.62Bi0.05Ca0.33MnO3 has been prepared by the standard solid-state process. The effect of Bi doping on the sintering temperature, the magnetic and magnetocaloric properties has been investigated. Bi2O3 was found to be an effective sintering aid for La0.67Ca0.33MnO3. It was found that small amounts of Bi doping (x = 0.05) can lower the sintering temperature about 200 degrees C. Bi-doped samples also exhibited a large magnetic entropy change, vertical bar Delta S-m vertical bar 3.5 J/kg K under 1 T field at the Curie temperature. (c) 2004 Elsevier B.V. All rights reserved.