Effect of Ti doping on the electrical transport and magnetic properties of layered compound Na_(0.8)CoO_2

W.Y. Zhang; Y.G. Zhao; Z.P. Guo; P.T. Qiao; L. Cui; L.B. Luo; X.P. Zhang; H.C. Yu; Y.G. Shi; S.Y. Zhang; T.Y. Zhao; J.Q. Li

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Effect of Ti doping on the electrical transport and magnetic properties of layered compound Na_(0.8)CoO_2

机译：Ti掺杂对层状化合物Na_（0.8）CoO_2的电输运和磁性能的影响

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Effect of Ti doping on the electrical transport and magnetic properties of layered Na_(0.8)CO_(1-x)Ti_xO_2 compounds has been investigated. The lattice parameters a and c increase with x. A minor amount of Ti doping results in a metal-insulator transition at low temperatures. For samples with x>0.03, the variable-range hopping process dominates the transport behavior above a certain temperature. The temperature dependence of magnetization of all the samples is found to obey the Curie-Weiss law. The mechanism of the doping effect is discussed.

机译：研究了Ti掺杂对层状Na_（0.8）CO_（1-x）Ti_xO_2化合物的电输运和磁性能的影响。晶格参数a和c随着x增大。少量的Ti掺杂会导致低温下的金属-绝缘体转变。对于x> 0.03的样品，在一定温度以上，可变范围跳跃过程决定了传输行为。发现所有样品的磁化强度对温度的依赖性都服从居里-魏斯定律。讨论了掺杂效应的机理。

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来源
《Solid State Communications》 |2005年第8期|p.480-484|共5页
作者
W.Y. Zhang; Y.G. Zhao; Z.P. Guo; P.T. Qiao; L. Cui; L.B. Luo; X.P. Zhang; H.C. Yu; Y.G. Shi; S.Y. Zhang; T.Y. Zhao; J.Q. Li;
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作者单位

Department of Physics, Tsinghua University, Beijing 100084, China;

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正文语种 eng
中图分类固体物理学;
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B. Chemical synthesis; D. Electronic transport;

机译：B.化学合成;D。电子运输;

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Effect of Ti doping on the electrical transport and magnetic properties of layered compound Na_(0.8)CoO_2

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