NDLI: Synthesis and Thermoelectric Properties of Yb-doped Ca$_{0.9−x }$Yb$_{ x }$La$_{0.1}$MnO$

Content Provider	Springer Nature Link
Author	Zhang, Bo Chang, Aimin Zhao, Qing Ye, Haitao Wu, Yiquan
Copyright Year	2014
Abstract	The microstructure and thermoelectric properties of Yb-doped Ca$_{0.9−x }$Yb$_{ x }$La$_{0.1}$ MnO$_{3}$ (0 ≤ x ≤ 0.05) ceramics prepared by using the Pechini method derived powders have been investigated. X-ray diffraction analysis has shown that all samples exhibit single phase with orthorhombic perovskite structure. All ceramic samples possess high relative densities, ranging from 97.04% to 98.65%. The Seebeck coefficient is negative, indicating n-type conduction in all samples. The substitution of Yb for Ca leads to a marked decrease in the electrical resistivity, along with a moderate decrease in the absolute value of the Seebeck coefficient. The highest power factor is obtained for the sample with x = 0.05. The electrical conduction in these compounds is due to electrons hopping between Mn$^{3+}$ and Mn$^{4+}$, which is enhanced by increasing Yb content.
Starting Page	4048
Ending Page	4055
Page Count	8
File Format	PDF
ISSN	03615235
Journal	Journal of Electronic Materials
Volume Number	43
Issue Number	11
e-ISSN	1543186X
Language	English
Publisher	Springer US
Publisher Date	2014-08-19
Publisher Place	Boston
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Manganites Pechini method power factor electrical conduction Optical and Electronic Materials Characterization and Evaluation of Materials Electronics and Microelectronics, Instrumentation Solid State Physics
Content Type	Text
Resource Type	Article
Subject	Materials Chemistry Electronic, Optical and Magnetic Materials Condensed Matter Physics Electrical and Electronic Engineering

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