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고온에서의 La0.75Ba0.25MnO3 세라믹스의 전기전도 및 열전특성 KCI 등재 SCOPUS
High-Temperature Electrical Transport and Thermoelectric Properties of La0.75Ba0.25MnO3 Ceramics
한국재료학회지
(Korean Journal of Materials Research)
제18권 제4호 (2008.04)
pp.175-180
pp.175-180
한국재료학회
(Materials Research Society Of Korea)
초록
In this study, the thermoelectric power and resistivity of the perovskite manganiteLa0.75Ba0.25MnO3 were investigated in the temperature range 300K-1200K. The electrical resistivity andthermoelectric power indicate a transport mechanism dominated by adiabatic small-polaron hopping. Thepower factor increases from 2×10−6W/mK2 to 1×10−5W/mK2 as to the temperature increases from 400K to1200K, which indicates that the compound is highly feasible as a thermoelectric material at high temperatures.
저자
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