Effects of germanium on the electronic transport mechanism in Co-20(Cu1-xGex)(80) nanogranular ribbons
文献类型：期刊论文
| 作者 | J. He ; Z. D. Zhang ; J. P. Liu ; D. J. Sellmyer |
| 刊名 | Journal of Materials Research
 |
| 出版日期 | 2002 |
| 卷号 | 17期号:12页码:3050-3055 |
| 关键词 | cu granular ribbons giant magnetoresistance films ni superlattices systems gmr |
| ISSN号 | 0884-2914 |
| 中文摘要 | The dependency of giant magnetoresistance (GMR) on the nonmagnetic matrix in nanogranular Co-20(Cu1-xGex)(80) ribbons was studied. When the matrix Cu is substituted with semiconductor Ge, the magnetoresistance transitioned from negative to positive at low temperatures. The positive GMR effect is closely related to the quantity of CO/Co3Ge2/Co junctionlike configurations. This result provides evidence for the competition between two types of electronic transport mechanisms in the magnetic granular ribbons: (i) electronic spin-dependent scattering, inducing a negative magnetoresistance and (ii) Coulomb blockade of the electronic tunneling, inducing a positive magnetoresistance. |
| 原文出处 | |
| 公开日期 | 2012-04-14 |
| 源URL | [http://ir.imr.ac.cn/handle/321006/36284]  |
| 专题 | 金属研究所_中国科学院金属研究所 |
| 推荐引用方式 GB/T 7714 | J. He,Z. D. Zhang,J. P. Liu,et al. Effects of germanium on the electronic transport mechanism in Co-20(Cu1-xGex)(80) nanogranular ribbons[J]. Journal of Materials Research,2002,17(12):3050-3055. |
| APA | J. He,Z. D. Zhang,J. P. Liu,&D. J. Sellmyer.(2002).Effects of germanium on the electronic transport mechanism in Co-20(Cu1-xGex)(80) nanogranular ribbons.Journal of Materials Research,17(12),3050-3055. |
| MLA | J. He,et al."Effects of germanium on the electronic transport mechanism in Co-20(Cu1-xGex)(80) nanogranular ribbons".Journal of Materials Research 17.12(2002):3050-3055. |
入库方式： OAI收割
来源：金属研究所
浏览0
下载0
收藏0
其他版本
除非特别说明，本系统中所有内容都受版权保护，并保留所有权利。