Improved magnetoresistance in Sm0.7-xCexSr0.3MnO3 manganites prepared by a sol-gel route
Yükleniyor...
Dosyalar
Tarih
2021
Dergi Başlığı
Dergi ISSN
Cilt Başlığı
Yayıncı
Springer/Plenum Publishers
Erişim Hakkı
info:eu-repo/semantics/closedAccess
Özet
In this work, manganite ceramics of Sm0.7-xCexSr0.3MnO3 (0 <= x <= 0.3) are prepared by a citrate sol-gel chemical route and characterized. The structure of the obtained samples is refined in the orthorhombic system with the Pnma space group. The doping causes a change in the lattice parameters leading to a decrease in the cell volume. It also increases slightly the grain size of the crystallites. The temperature dependence of resistivity reveals a metal-insulator transition for all samples. The doping shifts the temperature of this transition towards high values. The extracted magnetoresistance for a 5 T magnetic field is enhanced by doping. The highest obtained value increases from 66.70% for x = 0 to 97.96% for x = 0.3.
Açıklama
Anahtar Kelimeler
Manganites, Doping, Resistivity, Magnetoresistance
Kaynak
Journal of Low Temperature Physics
WoS Q Değeri
Q4
Scopus Q Değeri
Q2
Cilt
204
Sayı
1-2
Künye
Lakhal, E., Amira, A., Chihoub, R., Soylu, N., Altintas, S. P., Varilci, A., & Terzioglu, C. (2021). Improved Magnetoresistance in Sm 0.7-x Ce x Sr 0.3 MnO 3 Manganites Prepared by a Sol–Gel Route. Journal of Low Temperature Physics, 204(1-2), 48-56.
