| Co含量和退火温度对Co_x-C_(1-x)复合块材微结构和巨磁电阻效应的影响 |
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| 引用本文： | 吴勇,成钢,黄治锋,郑富强.Co含量和退火温度对Co_x-C_(1-x)复合块材微结构和巨磁电阻效应的影响[J].电工材料,2010(1):39-41. |
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| 作者姓名： | 吴勇 成钢 黄治锋 郑富强 |
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| 作者单位： | 桂林电子科技大学信息材料科学与工程系,广西桂林,541004 |
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| 基金项目： | 广西自然科学基金资助项目(桂科基0575093) |
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| 摘 要： | 采用液压烧结法制备了一系列不同Co含量的Cox_C1_x(原子分数)复合块材样品,用SEM和XRD分析了样品在不同退火温度下的形貌和结构,并应用标准的四探针法研究了退火温度和Co含量对样品的巨磁电阻(GMR)效应的影响。结果表明,Co含量大于0.15的样品,随着退火温度的升高GMR效应逐渐消失,而Co含量小于0.15的复合块材GMR效应则具有较好的热稳定性。
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| 关 键 词： | 液压烧结法 CoxC1x复合块材 巨磁电阻效应 退火温度 |
Influence of Annealing Temperature on Microstructure and Giant Magnetoresistance Effect of Cox-C1-x Bulk Composites |
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| WU Yong,CHENG Gang,HUANG Zhi-feng,ZHENG Fu-qiang.Influence of Annealing Temperature on Microstructure and Giant Magnetoresistance Effect of Cox-C1-x Bulk Composites[J].Electrical Engineering Materials,2010(1):39-41. |
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| Authors: | WU Yong CHENG Gang HUANG Zhi-feng ZHENG Fu-qiang |
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| Affiliation: | Department of Material Science and Engineer of Guilin University of Electronic Technology;Guilin 541004;China |
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| Abstract: | A series of Cox-C1-x bulk composites was fabricated by method of hydraulic pressure and sintering.The sizes and distributing of grains in the samples were investigated by using a scanning electron microscope and microstructure by X-ray diffraction apparatus.The giant magnetoresistance(GMR) effect of samples was investigated by.The results show that the GMR effect of samples decreases with increasing annealing temperature and the GMR effect of some is not monotonous. |
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| Keywords: | method of hydraulic pressure and sintering Cox-C1-x bulk composites giant magnetoresistance annealing temperature |
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