| Transport Properties of Polycrystalline La2/3Ca1/3Mn1-xCuxO3 |
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| 作者姓名： | YANGYing-ping YUANSong-liu等 |
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| 摘 要： | The infuence of Cu dopant (x) and sintering temperature(Ts) on the troansport propeties of La2/3Ca1/3Mn1-xCuxO3 series samples prepared by Sol-Gel technique was investigated.X-ray diffraction patterns show that all the samples with different Cu dopant and sintering temperatures (Ts) are of single phase without obvious latice distortion.Experimental results indicate that the insulator-metal transition temperature is diectly related to the sintering temperature and Cu dopant x.It is interesting to observe that a proper amount of Cu dompant can substantially improve magnetoresistance effects.
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| 关 键 词： | 多晶 溶胶-凝胶法 制备 晶间磁阻 电子输送 铜掺杂 La2/3Ca1/3Mn1-xCuxO3 |
| 收稿时间： | 3 June 2002 |
Transport propeties of polycrystalline La2/3Ca1/3Mn1? x Cu x O3 prepared by Sol-Gel |
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| Yang Ying-ping, Yuan Song-liu, Xia Zheng-cai, Zhang Guo-hong and Zhang Li-jiang.Transport Properties of Polycrystalline La2/3Ca1/3Mn1-xCuxO3[J].Journal of Wuhan University of Technology. Materials Science Edition,2002,17(4):47-50. |
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| Authors: | Yang Ying-ping Yuan Song-liu Xia Zheng-cai Zhang Guo-hong and Zhang Li-jiang |
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| Affiliation: | (1) Huazhong University of Science and Technology, Huazhong, China;(2) Department of Physics, Wuhan University of Technology, 430070 Wuhan, China |
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| Abstract: | The influence of Cu dopant (x) and sintering temperature (Ts) on the transport properties of La2/3Ca1/3Mn1−xCuxO3 series samples prepared by Sol-Gel technique was investigated. X-ray diffraction patterns show that all the samples with
different Cu dopant and sintering temperatures (Ts) are of single phase without obvious lattice distortion. Experimental results indicate that the insulator-metal transition
temperature is directly related to the sintering temperature and Cu dopant x. It is interesting to observe that a proper amount
of Cu dopant can substantially improve magnetoresistance effects.
YANG Ying-ping: Born in 1965.
This work was financially supported by National Natural Science Foundation of China (Grant No. 10174022) |
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| Keywords: | Cu doping sol-gel intergrain magnetoresistance |
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