Thermoelectric Properties of Ca0.5-xSr0.5LuxMnO3-δ Manganites

被引:1
作者
Konstantinova, E. I. [1 ]
Litvinov, V. A. [1 ]
Ryzhkov, M. A. [1 ,2 ]
Koryakov, A. D. [1 ]
Leonidov, I. A. [1 ]
机构
[1] Russian Acad Sci, Inst Solid State Chem, Ural Branch, Ekaterinburg 620108, Russia
[2] Yeltsin Fed Univ, Ekaterinburg 620002, Russia
基金
俄罗斯科学基金会;
关键词
perovskite-type manganites; electrical conductivity; Seebeck coefficient; specific heat; thermal expansion; POWER;
D O I
10.1134/S0020168523120051
中图分类号
T [工业技术];
学科分类号
08 ;
摘要
Using electrical conductivity (sigma), Seebeck coefficient (S), thermal expansion, specific heat, and thermal diffusivity measurements in air in the temperature range 300-1200 K, we have determined the thermal conductivity (kappa), thermoelectric power factor (S-2 sigma), and thermoelectric figure of merit (ZT = S-2 sigma T/kappa) of Ca0.5-xSr0.5LuxMnO3-delta (x = 0.05, 0.10, 0.15, 0.20) manganites. The Ca0.5-xSr0.5LuxMnO3-delta material has been shown to have the highest S2 sigma and ZT owing to its high S and low kappa.
引用
收藏
页码:1319 / 1325
页数:7
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