Dynamics-Entropy Relationship in Metallic Glasses
文献类型：期刊论文
| 作者 | Cao LL(曹琳莉); Wang YJ(王云江)
|
| 刊名 | JOURNAL OF PHYSICAL CHEMISTRY LETTERS
 |
| 出版日期 | 2024-01-17 |
| 卷号 | 15期号:3页码:811-816 |
| ISSN号 | 1948-7185 |
| DOI | 10.1021/acs.jpclett.3c03530 |
| 通讯作者 | Wang, Yun-Jiang(yjwang@imech.ac.cn) |
| 英文摘要 | Establishing a robust quantitative correlation between thermodynamics and dynamics in amorphous matter remains a significant challenge in condensed matter physics. Although the classical Adam-Gibbs relationship represents a pivotal step in this direction and the correlation between relaxation time and configurational entropy has been partially verified in simple liquids, this quantitative link has yet to be tested in realistic glass-forming systems where complex many-body interactions are present. Here we conduct free energy samplings and lattice dynamics analysis to distinguish vibrational entropy from configurational entropy in a realistic Cu-Zr model of a metallic glass. Our calculations unveil a power-law relationship (with a substantial exponent of similar to 3) between the logarithmic relaxation time and configurational entropy, surpassing the linear prediction of the original Adam-Gibbs relationship. This nonlinear entropy driven relaxation time variation likely originates from anisotropic nature of atomic many-body interactions, suggesting that factors beyond thermodynamics contribute to the glass transition phenomenon. |
| 分类号 | 一类 |
| WOS关键词 | CONFIGURATIONAL ENTROPY ; TEMPERATURE-DEPENDENCE ; MOLECULAR-DYNAMICS ; VISCOUS-LIQUIDS ; TRANSITION ; VISCOSITY ; FRAGILITY ; MODEL |
| 资助项目 | National Natural Science Foundation of China[12072344] ; National Natural Science Foundation of China ; Youth Innovation Promotion Association of the Chinese Academy of Sciences |
| WOS研究方向 | Chemistry ; Science & Technology - Other Topics ; Materials Science ; Physics |
| 语种 | 英语 |
| WOS记录号 | WOS:001151470700001 |
| 资助机构 | National Natural Science Foundation of China ; National Natural Science Foundation of China ; Youth Innovation Promotion Association of the Chinese Academy of Sciences |
| 其他责任者 | Wang, Yun-Jiang |
| 源URL | [http://dspace.imech.ac.cn/handle/311007/94195]  |
| 专题 | 力学研究所_非线性力学国家重点实验室 |
| 推荐引用方式 GB/T 7714 | Cao LL,Wang YJ. Dynamics-Entropy Relationship in Metallic Glasses[J]. JOURNAL OF PHYSICAL CHEMISTRY LETTERS,2024,15(3):811-816. |
| APA | 曹琳莉,&王云江.(2024).Dynamics-Entropy Relationship in Metallic Glasses.JOURNAL OF PHYSICAL CHEMISTRY LETTERS,15(3),811-816. |
| MLA | 曹琳莉,et al."Dynamics-Entropy Relationship in Metallic Glasses".JOURNAL OF PHYSICAL CHEMISTRY LETTERS 15.3(2024):811-816. |
入库方式： OAI收割
来源：力学研究所
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