Structural, magnetic and magnetocaloric properties of the compound La0.94Bi0.06MnO3
Küçük Resim Yok
Tarih
2014
Yazarlar
Dergi Başlığı
Dergi ISSN
Cilt Başlığı
Yayıncı
Elsevier Science Bv
Erişim Hakkı
info:eu-repo/semantics/closedAccess
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.
Açıklama
Anahtar Kelimeler
Perovskite-type La1-xBixMnO3, Jahn-Teller effect, Magnetocaloric effect
Kaynak
Journal of Magnetism and Magnetic Materials
WoS Q Değeri
Q2
Scopus Q Değeri
Q2
Cilt
372
