Intrinsic Features of an Ideal Glass
In order to understand the long-standing problem of the nature of glass states, we perform intensive simulations on the thermodynamic properties and potential energy surface of an ideal glass. It is found that the atoms of an ideal glass manifest cooperative diffusion, and show clearly different beh...
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| Published in | Chinese physics letters Vol. 34; no. 2; pp. 76 - 79 |
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| Main Author | |
| Format | Journal Article |
| Language | English |
| Published |
01.02.2017
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| Online Access | Get full text |
| ISSN | 0256-307X 1741-3540 |
| DOI | 10.1088/0256-307X/34/2/026402 |
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| Abstract | In order to understand the long-standing problem of the nature of glass states, we perform intensive simulations on the thermodynamic properties and potential energy surface of an ideal glass. It is found that the atoms of an ideal glass manifest cooperative diffusion, and show clearly different behavior from the liquid state. By determining the potential energy surface, we demonstrate that the glass state has a fiat potential landscape, which is the critical intrinsic feature of ideal glasses. When this potential region is accessible through any thermal or kinetic process, the glass state can be formed and a glass transition will occur, regardless of any special structural character. With this picture, the glass transition can be interpreted by the emergence of conlgurational entropies, as a consequence of flat potential landscapes. |
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| AbstractList | In order to understand the long-standing problem of the nature of glass states, we perform intensive simulations on the thermodynamic properties and potential energy surface of an ideal glass. It is found that the atoms of an ideal glass manifest cooperative diffusion, and show clearly different behavior from the liquid state. By determining the potential energy surface, we demonstrate that the glass state has a fiat potential landscape, which is the critical intrinsic feature of ideal glasses. When this potential region is accessible through any thermal or kinetic process, the glass state can be formed and a glass transition will occur, regardless of any special structural character. With this picture, the glass transition can be interpreted by the emergence of conlgurational entropies, as a consequence of flat potential landscapes. |
| Author | 孙得彦 商城 刘智攀 龚新高 |
| AuthorAffiliation | Department of Physics, East China Normal University, Shanghai 200062 Department of Chemistry, Fudan University, Shanghai 200433 Key Laboratory for Computational Physical Sciences （MOE）, State Key Laboratory of Surface Physics, Department of Physics, Fudan University, Shanghai 200433 Collaborative Innovation Center of Advanced Microstructures, Nanjing 210093 |
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| CitedBy_id | crossref_primary_10_1016_j_physleta_2019_05_032 crossref_primary_10_1088_0256_307X_38_1_016802 crossref_primary_10_1088_1674_1056_ab8628 crossref_primary_10_1016_j_commatsci_2021_110533 crossref_primary_10_1103_PhysRevB_105_035403 crossref_primary_10_1002_smtd_202200171 crossref_primary_10_1088_1402_4896_ad155c crossref_primary_10_1039_C7SM02359F crossref_primary_10_1039_D3NR05744E crossref_primary_10_1360_SSPMA_2024_0051 |
| Cites_doi | 10.1021/ct301010b 10.1063/1.1696442 10.1088/0034-4885/79/6/066504 10.1103/PhysRevB.28.784 10.1063/1.1672587 10.1111/j.1151-2916.1968.tb11855.x 10.1103/PhysRevB.73.125407 10.1016/j.jasms.2006.08.019 10.1126/science.309.5731.75 10.1063/1.1730566 10.1021/ct400238j 10.1088/0953-8984/27/13/134203 10.1209/0295-5075/26/8/005 10.1103/PhysRevLett.88.055502 10.1103/RevModPhys.83.587 10.1103/PhysRevA.40.1045 10.1103/RevModPhys.78.953 10.1016/j.pmatsci.2011.07.001 10.1103/PhysRevB.77.024304 10.1021/cr60135a002 10.1063/1.1744141 10.1039/C4CP04145C 10.1103/PhysRevB.57.4730 10.1038/35065704 10.1063/1.1574797 10.1088/0953-8984/14/26/101 10.1016/j.physrep.2009.03.003 10.1073/pnas.1111582109 |
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| Notes | 11-1959/O4 Deyan Sun1,3, Cheng Shang2, Zhipan Liu2, Xingao Gong3,4 （1.Department of Physics, East China Normal University, Shanghai 200062 ; 2.Department of Chemistry, Fudan University, Shanghai 200433; 3. Key Laboratory for Computational Physical Sciences （MOE）, State Key Laboratory of Surface Physics, Department of Physics, Fudan University, Shanghai 200433; 4.Collaborative Innovation Center of Advanced Microstructures, Nanjing 210093） In order to understand the long-standing problem of the nature of glass states, we perform intensive simulations on the thermodynamic properties and potential energy surface of an ideal glass. It is found that the atoms of an ideal glass manifest cooperative diffusion, and show clearly different behavior from the liquid state. By determining the potential energy surface, we demonstrate that the glass state has a fiat potential landscape, which is the critical intrinsic feature of ideal glasses. When this potential region is accessible through any thermal or kinetic process, the glass state can be formed and a glass transition will occur, regardless of any special structural character. With this picture, the glass transition can be interpreted by the emergence of conlgurational entropies, as a consequence of flat potential landscapes. |
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| References | 22 25 27 28 29 30 10 11 12 13 14 15 16 Sun D Y (24) 2002; 14 17 18 19 Shang C (21) 2015; 27 Angell C A (2) 1924; 267 Micoulaut M (8) 2016; 79 Ercolessi F (23) 1994; 26 1 3 4 5 6 7 9 Zhang X J (26) 2017 20 |
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