Multiple and transforming vibrational identities of atoms in amorphous solids
文献类型：期刊论文
| 作者 | Duan J(段军)3 ; Ding G(丁淦)3; Cai SL(蔡松林)3; Dai LH(戴兰宏)2,3; Ma E1; Jiang MQ(蒋敏强)2,3
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| 刊名 | JOURNAL OF CHEMICAL PHYSICS
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| 出版日期 | 2025-01-28 |
| 卷号 | 162期号:4页码:9 |
| ISSN号 | 0021-9606 |
| DOI | 10.1063/5.0250753 |
| 通讯作者 | Ma, E.(maen@xjtu.edu.cn) ; Jiang, M. Q.(mqjiang@imech.ac.cn) |
| 英文摘要 | Identifying the diverse roles of disorderly packed atoms inside an amorphous solid has been a highly pursued but daunting task in glass physics. By analyzing the full-frequency vibrational modes of a model Cu50Zr50 glass, here, we classify the internal atoms into low-, subhigh-, and high-frequency ones that have different tendencies for rearrangements upon excitations. We find that low-frequency atoms are structurally unfavored and tend to aggregate. High-frequency atoms originating from compressed atomic pairs are also mechanically unstable. As yield approaches, shear-transformation rearrangements shift from low-frequency to high-frequency atoms. Subhigh-frequency atoms play the role of stable backbones. Given that atoms can have different identities, multiple identities are observed to overlap in space. Atoms with one vibrational identity often transform to another one, showing different preferences in transformation routes. Our results deepen the understanding of atomic structures for amorphous plasticity beyond the simplified picture of soft vs hard spots. |
| 分类号 | 二类/Q1 |
| WOS关键词 | MEDIUM-RANGE ORDER ; METALLIC-GLASS ; PLASTICITY ; DYNAMICS ; MODES ; REARRANGEMENTS ; HETEROGENEITY ; LOCALIZATION ; LIQUID |
| 资助项目 | National Outstanding Youth Foundation of Chinahttps://doi.org/10.13039/501100010225[12125206] ; National Outstanding Youth Foundation of Chinahttps://doi.org/10.13039/501100010225[11988102] ; National Outstanding Youth Science Fund Project[W2411003] ; Major International Joint Research Project ; NSFC[YSBR-096] ; CAS Project for Young Scientists in Basic Research |
| WOS研究方向 | Chemistry ; Physics |
| 语种 | 英语 |
| WOS记录号 | WOS:001404907800003 |
| 资助机构 | National Outstanding Youth Foundation of Chinahttps://doi.org/10.13039/501100010225 ; National Outstanding Youth Science Fund Project ; Major International Joint Research Project ; NSFC ; CAS Project for Young Scientists in Basic Research |
| 其他责任者 | Ma, E. ; Jiang, M. Q. |
| 源URL | [http://dspace.imech.ac.cn/handle/311007/98243]  |
| 专题 | 力学研究所_非线性力学国家重点实验室 |
| 作者单位 | 1.Xi An Jiao Tong Univ, State Key Lab Mech Behav Mat, Xian 710049, Peoples R China 2.Univ Chinese Acad Sci, Sch Engn Sci, Beijing 101408, Peoples R China; 3.Chinese Acad Sci, Inst Mech, State Key Lab Nonlinear Mech, Beijing 100190, Peoples R China; |
| 推荐引用方式 GB/T 7714 | Duan J,Ding G,Cai SL,et al. Multiple and transforming vibrational identities of atoms in amorphous solids[J]. JOURNAL OF CHEMICAL PHYSICS,2025,162(4):9. |
| APA | 段军,丁淦,蔡松林,戴兰宏,Ma E,&蒋敏强.(2025).Multiple and transforming vibrational identities of atoms in amorphous solids.JOURNAL OF CHEMICAL PHYSICS,162(4),9. |
| MLA | 段军,et al."Multiple and transforming vibrational identities of atoms in amorphous solids".JOURNAL OF CHEMICAL PHYSICS 162.4(2025):9. |
入库方式： OAI收割
来源：力学研究所
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