Nanostructured SmFeO3 electrophysical properties

2nd International Symposium on Fundamental Aspects of Rare-earth Elements Mining and Separation and Modern Materials Engineering

材料科学;物理学

Abdulvakhidov, K.G.^1 ; Kallaev, S.N.^2 ; Kazaryan, M.A.^3 ; Plyaka, P.S.^4 ; Sadikov, S.A.^5 ; Sirota, M.A.^1 ; Zubkov, S.V.^1

Southern Federal University, 105/42 B Sadovaya str., Rostov-on-Don

344006, Russia^1

Dagestan Scientific Center of Russian Academy of Sciences, 45 Hajiyev str., Makhachkala, Dagestan Republic

367025, Russia^2

P.N. Lebedev Physical Institute of Russian Academy of Sciences, 53 Lenin ave., Moscow

119991, Russia^3

Southern Scientific Center of Russian Academy of Sciences, 41 Chekhova str., Rostov-on-Don

344006, Russia^4

Dagestan State University, 43A Hajiyev str., Makhachkala, Dagestan Republic

367000, Russia^5

关键词: Classical sintering;    Direct current conductivity;    Electrophysical properties;    Mechanoactivation;    Nanostructured ceramic;    Samarium orthoferrite;    Solid phase synthesis;    Spontaneous polarizations;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/112/1/012020/pdf
DOI  :  10.1088/1757-899X/112/1/012020

学科分类：材料科学（综合）

来源: IOP

【 摘 要 】

Samarium orthoferrite conventional and nanostructured ceramic physical properties and structure investigations are reported in the paper. Ceramic samples have been prepared both by classical sintering method after solid phase synthesis and by Bridgman anvil mechanoactivation after synthesis. The authors have established that the mechanoactivation suppress direct current conductivity and increase spontaneous polarization. Polycrystalline samarium orthoferrite physical properties can be purposefully varied on fabrication stage without doping.