Electrical condtictivity of Bi2WO6 crystals doped with Ca2+, Pb2+, Sr2+, and Ba2+статья
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Дата последнего поиска статьи во внешних источниках: 18 июля 2013 г.
Аннотация:Single crystals of Bi2WO6 (a layered perovskite-like compound) doped with Ca2+, Pb2+, Sr2+, and Ba2+ on the Bi3+, site are grown, and their oxygen ionic conductivity is measured along the polar axis. The intrinsic conductivity of the doped crystals differs insignificantly from the conductivity of undoped Bi2WO6, indicating that the oxygen ions in the Bi2O2 layers contribute little to the oxygen ionic conductivity of the crystals. The sharp change in the activation energy for conduction at 600 degrees C attests to a transition from one conduction mechanism to another in going from low to high temperatures.