Nanoscale Behavior and Manipulation of the Phase Transition in Single-Crystal Cu2Se
文献类型：期刊论文
| 作者 | Chen, Lu; Liu, Jun; Jiang, Chao; Zhao, Kunpeng; Chen, Hongyi; Shi, Xun; Chen, Lidong; Sun, Chenghua; Zhang, Shengbai; Wang, Yong |
| 刊名 | ADVANCED MATERIALS
 |
| 出版日期 | 2019-01-25 |
| 卷号 | 31期号:4 |
| ISSN号 | 0935-9648 |
| 关键词 | Cu2Se in situ transmission electron microscopy second-order phase transitions |
| DOI | 10.1002/adma.201804919 |
| 文献子类 | Article |
| 英文摘要 | Phase transition is a fundamental physical phenomenon that has been widely studied both theoretically and experimentally. According to the Landau theory, the coexistence of high- and low-temperature phases is thermodynamically impossible during a second-order phase transition in a bulk single crystal. Here, the coexistence of two (alpha and beta) phases in wedge-shaped nanosized single-crystal Cu2Se over a large temperature range are demonstrated. By considering the surface free-energy difference between the two phases and the shape effect, a thermodynamic model is established, which explicitly explains their coexistence. Intriguingly, it is found that with a precise control of the heating temperature, the phase boundary can be manipulated at atomic level. These discoveries extend the understanding of phase transitions to the nanoscale and shed light on rational manipulation of phase transitions in nanomaterials. |
| WOS研究方向 | Chemistry ; Science & Technology - Other Topics ; Materials Science ; Physics |
| 语种 | 英语 |
| 出版者 | WILEY-V C H VERLAG GMBH |
| 源URL | [http://ir.sic.ac.cn/handle/331005/27383]  |
| 专题 | 中国科学院上海硅酸盐研究所 |
| 推荐引用方式 GB/T 7714 | Chen, Lu,Liu, Jun,Jiang, Chao,et al. Nanoscale Behavior and Manipulation of the Phase Transition in Single-Crystal Cu2Se[J]. ADVANCED MATERIALS,2019,31(4). |
| APA | Chen, Lu.,Liu, Jun.,Jiang, Chao.,Zhao, Kunpeng.,Chen, Hongyi.,...&Zhang, Ze.(2019).Nanoscale Behavior and Manipulation of the Phase Transition in Single-Crystal Cu2Se.ADVANCED MATERIALS,31(4). |
| MLA | Chen, Lu,et al."Nanoscale Behavior and Manipulation of the Phase Transition in Single-Crystal Cu2Se".ADVANCED MATERIALS 31.4(2019). |
入库方式： OAI收割
来源：上海硅酸盐研究所
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。