Electric properties of La_(0.8)Sr_(0.2)CoO_3 nanoceramics  

作　　者：A.Chuchmaa R.J.Wiglusz B.Macalik P.Guchowski B.Mazurek W.Strek 

机构地区：[1]Electrotechnical Institute, Division of Electrotechnology and Materials Wroctaw, Poland [2]Institute for Low Temperature and Structure Research, Polish Academy of Sciences P.O.Box 937, 50-442 Wroctaw, Poland

出　　处：《Journal of Rare Earths》2009年第4期646-650,共5页稀土学报（英文版）

摘　　要：The electric measurements were carried out for La0.8Sr0.2CoO3 nanoceramics by using impedance spectroscopy methods. The resistance of sample was practically independent of frequency in measurement range. Its dependence on reciprocal temperature showed quite complicated mechanism of conduction. The most striking property of investigated sample was its resistance decreasing with increasing applied polarization.The electric measurements were carried out for La0.8Sr0.2CoO3 nanoceramics by using impedance spectroscopy methods. The resistance of sample was practically independent of frequency in measurement range. Its dependence on reciprocal temperature showed quite complicated mechanism of conduction. The most striking property of investigated sample was its resistance decreasing with increasing applied polarization.

关 键 词：PEROVSKITE lanthanum strontium cobaltite hopping conductivity impedance spectroscopy rare earths 

分 类 号：O614.331[理学—无机化学]