Structural, Dielectric and Impedance Spectroscopy Studies In Co Doped La0.7Te0.3MnO3

被引：0
作者：
Uthaman, Bhagya [1 ]
Revathy, R. [1 ]
Job, Rojerce Brown [1 ,2 ]
Varma, Manoj Raama [1 ,2 ]
机构：
[1] CSIR, Natl Inst Interdisciplinary Sci & Technol Div NII, Mat Sci & Technol Div, Ind Estate PO, Pappanamcode 695019, India
[2] CSIR Natl Inst Interdisciplinary Sci & Technol, Acad Sci & Innovat Res AcSIR, CSIR NIIST Campus, Thiruvananthapuram 695019, Kerala, India
来源：
2ND INTERNATIONAL CONFERENCE ON CONDENSED MATTER AND APPLIED PHYSICS (ICC-2017) | 2018年 / 1953卷
关键词：
Electron doped manganite; structural transition Dielectric Studies; Impedance Spectroscopy;
D O I：
10.1063/1.5032686
中图分类号：
O59 [应用物理学];
学科分类号：
摘要：
The effect of cobalt doping on the structural and dielectric properties of the electron-doped manganite La0.7Te0.3Mn1-xCoxO3 (x= 0, 0.1, 0.3 and 0.5) has been investigated. Cobalt substitution induces a structural transition from rhombohedral structure (R-3 c space group) to orthorhombic structure (Pbnm space group). It is observed that, dielectric constant decreases with Co concentration which could be due to suppression of double exchange (DE) interaction between Mn2+ and Mn3+. Also, the effect of the grain and grain boundary density on the dielectric response is studied using Cole-Cole plots.
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页数：4
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