| Nd_(0.5)Ca_(0.5)MnO_3电荷有序态下电荷输运机制的研究 |
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| 引用本文： | 刘毅,孔辉.Nd_(0.5)Ca_(0.5)MnO_3电荷有序态下电荷输运机制的研究[J].贵州大学学报(自然科学版),2006(3). |
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| 作者姓名： | 刘毅 孔辉 |
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| 作者单位： | 贵州大学理学院 贵州贵阳550003(刘毅)，中国科学技术大学材料科学与工程系 合肥230026(孔辉) |
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| 基金项目： | 贵州省科技厅自然科学基金项目(黔科合J字(2005)2091号)资助 |
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| 摘 要： | 制备了单相多晶Nd0.5Ca0.5MnO3样品,研究了该体系在电荷有序态下的电荷输运机制.研究表明,该体系在低温下表现为半导体输运特性,在250K处发生了电荷有序相变;电荷有序态下的电荷输运机制满足可变程跃迁模型.
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| 关 键 词： | 锰氧化物 电荷有序态 电阻率 |
Study of Transport Properties in Charge Ordered Nd_(0.5)Ca_(0.5)MnO_3 |
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| LIU Yi,KONG Hui.Study of Transport Properties in Charge Ordered Nd_(0.5)Ca_(0.5)MnO_3[J].Journal of Guizhou University(Natural Science),2006(3). |
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| Authors: | LIU Yi KONG Hui |
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| Institution: | LIU Yi~1,KONG Hui~2 |
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| Abstract: | The transport properties of charge ordered Nd_(0.5)Ca_(0.5)MnO_3 have been investigated.Resistivity measurement shows that the sample undergoes a charge ordering transition at about Tco=250K.It was found that the resistivity data show a variable-range hopping(VRH) process in the charge ordered state. |
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| Keywords: | Manganites Charge ordering Resistivity |
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