Possible Kondo Physics near a Metal-Insulator Crossover in the A-Site Ordered Perovskite CaCu3Ir4O12
文献类型：期刊论文
| 作者 | Cheng, JG ; Zhou, JS ; Yang, YF ; Zhou, HD ; Matsubayashi, K ; Uwatoko, Y ; MacDonald, A ; Goodenough, JB |
| 刊名 | PHYSICAL REVIEW LETTERS
 |
| 出版日期 | 2013 |
| 卷号 | 111期号:17 |
| ISSN号 | 0031-9007 |
| 通讯作者 | Cheng, JG (reprint author), Univ Texas Austin, Mat Sci & Engn Program, Austin, TX 78712 USA. |
| 中文摘要 | The A-site ordered perovskite (AA(3)')B4O12 can accommodate transition metals on both A' and B sites in the crystal structure. Because of this structural feature, it is possible to have narrow-band electrons interacting with broadband electrons from different sublattices. Here we report a new A-site ordered perovskite (CaCu3)Ir4O12 synthesized under high pressure. The coupling between localized spins on Cu2+ and itinerant electrons from the Ir-O sublattice makes Kondo-like physics take place at a temperature as high as 80 K. Results from the local density approximation calculation have confirmed the relevant band structure. The magnetization anomaly found at 80 K can be well rationalized by the two-fluid model. |
| 资助信息 | NSF [DMR 1122603]; Robert A. Welch Foundation [F-1066]; KAKENHI [23340101, 252460135]; JSPS [12F02023]; National Basic Research Program of China (973 program) [2014CB921500]; Chinese Academy of Sciences [Y2K5016X51]; NSF-China [11174339]; Ministry of Education, Culture, Sports, Science and Technology, Japan [24740220] |
| 语种 | 英语 |
| 公开日期 | 2014-01-16 |
| 源URL | [http://ir.iphy.ac.cn/handle/311004/57343]  |
| 专题 | 物理研究所_物理所公开发表论文_物理所公开发表论文_期刊论文 |
| 推荐引用方式 GB/T 7714 | Cheng, JG,Zhou, JS,Yang, YF,et al. Possible Kondo Physics near a Metal-Insulator Crossover in the A-Site Ordered Perovskite CaCu3Ir4O12[J]. PHYSICAL REVIEW LETTERS,2013,111(17). |
| APA | Cheng, JG.,Zhou, JS.,Yang, YF.,Zhou, HD.,Matsubayashi, K.,...&Goodenough, JB.(2013).Possible Kondo Physics near a Metal-Insulator Crossover in the A-Site Ordered Perovskite CaCu3Ir4O12.PHYSICAL REVIEW LETTERS,111(17). |
| MLA | Cheng, JG,et al."Possible Kondo Physics near a Metal-Insulator Crossover in the A-Site Ordered Perovskite CaCu3Ir4O12".PHYSICAL REVIEW LETTERS 111.17(2013). |
入库方式： OAI收割
来源：物理研究所
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。