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Issue 1, 1996
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Preparation and electrical properties of KCa2–xLaxNb3O10


Electron-doped layered perovskite KCa2–xLaxNb3O10 was prepared from KNbO3, Nb2O5, Nb, La2O3 and KCa2Nb3O10 at 1200°C for 10 h under Ar. Essentially single-phase KCa2–xLaxNb3O10 with plate-like morphology was obtained with 0⩽x⩽ 0.3, and lattice parameters increased with increasing x. All the La-doped products showed semiconducting behaviour. Linear (log ρ)–T relationships were clearly observed, but the resistivity behaviour deviates from the linear relationship at lower temperatures. A possible conduction mechanism is discussed.

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Article type: Paper
DOI: 10.1039/JM9960600069
Citation: J. Mater. Chem., 1996,6, 69-72
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    Preparation and electrical properties of KCa2–xLaxNb3O10

    D. Hamada, M. Machida, Y. Sugahara and K. Kuroda, J. Mater. Chem., 1996, 6, 69
    DOI: 10.1039/JM9960600069

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