B-site Fe doping effect on the structure and electronic transport properties of quasi-one-dimensional spin ladder compound Sr-14(Cu1-yFey)(24)O-41
文献类型：期刊论文
| 作者 | N. Hu ; H. Xie ; L. L. Wang ; Y. Lin ; R. Xiong ; Z. X. Yu ; W. F. Tang ; J. Shi |
| 刊名 | Acta Physica Sinica
 |
| 出版日期 | 2006 |
| 卷号 | 55期号:7页码:3480-3487 |
| 关键词 | strongly correlated electronic systems spin ladder compound crystal structure electronic transport properties metal-insulator-transition system sr14-xcaxcu24o41 sr14cu24o41 gap |
| ISSN号 | 1000-3290 |
| 中文摘要 | Two groups of Sr-14 (Cu1-y Fe-y)(24)O-41 compounds with Fe3+ doping and 2/3Fe(3+) + 1/3Fe(2+) admixture doping respectively were prepared by conventional solid-state reaction. X-ray diffraction analysis shows that the samples have single phase with y <= 0.03 of Fe3+ doping and y <= 0.02 of 2/3Fe(3+) + 1/3Fe(2+) admixture doping. The lattice parameters a and b decrease gradually when the doping content increases for each group. The measurements of electronic transport properties show that the electrical resistivity decreases monotonically with the increase in y of Fe3+ doping, which indicates that free hole carriers in the ladder increase. A crossover temperature T-rho was observed in the Arrhenius plot of the resistivity versus temperature. The decrease of resistivity of the Fe3+ doped samples is interpreted in term of the dissociation of spin dimers and hole pairs located in the ladder induced by the substitution of Fe3+ for Cu2+. Two kinds of possible conduction mechanisms above and below T-rho are presented respectively. The fitting of experimental data proves that the conduction mechanism above T-rho is due to thermal activated single-holes' contribution, while below T-rho one-dimensional hopping conduction is dominant. |
| 原文出处 | |
| 公开日期 | 2012-04-13 |
| 源URL | [http://ir.imr.ac.cn/handle/321006/34247]  |
| 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 | N. Hu,H. Xie,L. L. Wang,et al. B-site Fe doping effect on the structure and electronic transport properties of quasi-one-dimensional spin ladder compound Sr-14(Cu1-yFey)(24)O-41[J]. Acta Physica Sinica,2006,55(7):3480-3487. |
| APA | N. Hu.,H. Xie.,L. L. Wang.,Y. Lin.,R. Xiong.,...&J. Shi.(2006).B-site Fe doping effect on the structure and electronic transport properties of quasi-one-dimensional spin ladder compound Sr-14(Cu1-yFey)(24)O-41.Acta Physica Sinica,55(7),3480-3487. |
| MLA | N. Hu,et al."B-site Fe doping effect on the structure and electronic transport properties of quasi-one-dimensional spin ladder compound Sr-14(Cu1-yFey)(24)O-41".Acta Physica Sinica 55.7(2006):3480-3487. |
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。