TY - JOUR
T1 - Preparation and electrical properties of KCa2-xLaxNb3O10
AU - Hamada, Daisuke
AU - Machida, Masahiko
AU - Sugahara, Yoshiyuki
AU - Kuroda, Kazuyuki
PY - 1996/1
Y1 - 1996/1
N2 - 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.
AB - 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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U2 - 10.1039/JM9960600069
DO - 10.1039/JM9960600069
M3 - Article
AN - SCOPUS:0013371247
SN - 0959-9428
VL - 6
SP - 69
EP - 72
JO - Journal of Materials Chemistry
JF - Journal of Materials Chemistry
IS - 1
M1 - 5/05248C
ER -