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Electrical transport properties of La2CuO4 ceramics processed by the spark plasma sintering
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2007 (English)In: Journal of The American Ceramic Society, ISSN 0002-7820, E-ISSN 1551-2916, Vol. 90, no 12, 4005-4008 p.Article in journal (Refereed) Published
Abstract [en]

Highly dense La2CuO4 ceramics have been prepared by the spark plasma sintering technique. Temperature dependence of electrical conductivity indicates that La2CuO4 ceramics sintered at over 875 degrees C exhibit a metal-like behavior, which should be ascribed to the special La2CuO4 crystal structure and its correlation splitting of the half-filled d(x2-y2) band. Our experimental data indicate that all of the La2CuO4 samples exhibit positive thermoelectric power in the whole measuring temperature range, indicating that the majority of charge carriers are holes. It is desirable to obtain good thermoelectric performance for this system by optimizing the electrical properties and reducing the thermal conductivity.

Place, publisher, year, edition, pages
2007. Vol. 90, no 12, 4005-4008 p.
Keyword [en]
thermoelectric properties, cobalt oxides, ca3co4o9
National Category
Inorganic Chemistry
URN: urn:nbn:se:su:diva-55268DOI: 10.1111/j.1551-2916.2007.01982.xISI: 000251504300045OAI: diva2:406633
authorCount :6Available from: 2011-03-28 Created: 2011-03-07 Last updated: 2011-03-28Bibliographically approved

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Shen, Zhijian
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Inorganic Chemistry
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