Structural, magnetic and magnetocaloric properties of the compound La0.94Bi0.06MnO3

İZGİ T., KOLAT V. S., BAYRİ N., GENÇER H., ATALAY S.

JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS, cilt.372, ss.112-116, 2014 (SCI-Expanded) identifier identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 372
  • Basım Tarihi: 2014
  • Doi Numarası: 10.1016/j.jmmm.2014.07.037
  • Dergi Adı: JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS
  • Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Sayfa Sayıları: ss.112-116
  • Anahtar Kelimeler: Perovskite-type La1-xBixMnO3, Jahn-Teller effect, Magnetocaloric effect, FERROMAGNETIC PEROVSKITE BIMNO3, TRANSPORT-PROPERTIES, ENTROPY-CHANGE, MAGNETORESISTANCE, LA1-XBIXMNO3, CRYSTAL, TEMPERATURE, MANGANITES
  • İnönü Üniversitesi Adresli: Evet

Özet

In this study, the magnetocaloric properties of lightly doped La0.94Bi0.06MnO3 were investigated in detail. Polycrystalline manganite with the chemical composition La0.94Bi0.06MnO3 was prepared by a standard solid-state process. An X-ray diffraction measurement indicated that the sample crystallised into a single phase, the orthorhombic structure. Magnetic measurements showed that relatively small amount of Bi doping in LaMnO3 could cause ferromagnetic ordering. The Curie temperature was determined to be 209 K. The sample also exhibited a large magnetic entropy change vertical bar Lambda S-m vertical bar=1.58 J/kg K under a IT magnetic field near the Curie temperature. Using the Landau theory and Arrott plots, the phase transition was determined to be first order. (C) 2014 Elsevier B.V. All rights reserved.