Structural and magneto-transport features of cobalt-substituted mixed-valence manganites
Yükleniyor...
Tarih
2021
Yazarlar
Dergi Başlığı
Dergi ISSN
Cilt Başlığı
Yayıncı
Springer
Erişim Hakkı
info:eu-repo/semantics/closedAccess
Özet
We report the results of a detailed investigation of the role of cation substitution Co -> Mn on the structural, microstructural, magnetic, and transport properties of the manganite system La2/3Ca1/3Mn1-xCoxO3 (x = 0.0, 0.1, 0.2 and 0.3). It is found that the replacement of Mn with Co does not change the crystal structure of the parent compound La2/3Ca1/3MnO3 which crystallizes in orthorhombic structure with Pbnm space group. From a systematic analysis of the magneto-transport measurements, it has been shown that the cobalt substitution leads to a decrease in the system magnetization and lowering of Curie and metal-insulator transition temperatures. The magnetoresistance percentage (MR%), which is found to change significantly by Co substitution and exceeds 100% for x = 0.3 sample at low temperatures, is also reported at 1 T applied magnetic field.
Açıklama
Anahtar Kelimeler
Jahn–Teller Splitting, X-ray Diffraction
Kaynak
Journal of Materials Science-Materials in Electronics
WoS Q Değeri
Q2
Scopus Q Değeri
Q2
Cilt
32
Sayı
6
Künye
Altintas, S. P. (2021). Structural and magneto-transport features of cobalt-substituted mixed-valence manganites. Journal of Materials Science: Materials in Electronics, 32, 7176-7186.
