Academic Journal
Thermal properties of medium-sized Ge clusters
| العنوان: | Thermal properties of medium-sized Ge clusters |
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| المؤلفون: | Wang, JL, Zhao, JJ, Ding, F, Shen, WF, Lee, H, Wang, GH |
| بيانات النشر: | PERGAMON-ELSEVIER SCIENCE LTD |
| سنة النشر: | 2001 |
| المجموعة: | ScholarWorks@UNIST (Ulsan National Institute of Science and Technology) |
| الوصف: | The thermal behavior of germanium clusters is studied by using tight-binding molecular dynamics. The lowest energy structures of Ge, clusters up to 21 atoms are optimized with a genetic algorithm. Some high symmetric layered structures are found in medium-sized clusters and large clusters can be constructed from small cluster subunits. We discuss the melting temperature as a function of the cluster size. Even-odd alternation is found in the size range n = 11-17. The Ge, clusters with n = 7, 12 and 19 have particularly high melting points, which correspond to the relatively high stabilities of their ground state structures. We find that the large clusters can be dissociated into small clusters upon heating and an interesting two-stage melting behavior is revealed in the case of Ge-21. (C) 2001 Elsevier Science Ltd. All rights reserved. |
| نوع الوثيقة: | article in journal/newspaper |
| اللغة: | unknown |
| تدمد: | 0038-1098 |
| Relation: | SOLID STATE COMMUNICATIONS, v.117, no.10, pp.593 - 598; https://scholarworks.unist.ac.kr/handle/201301/31444; 35029; 2-s2.0-0035252193; 000167083300005; https://www.sciencedirect.com/science/article/pii/S0038109800005238?via%3Dihub |
| DOI: | 10.1016/S0038-1098(00)00523-8 |
| الاتاحة: | https://scholarworks.unist.ac.kr/handle/201301/31444 https://doi.org/10.1016/S0038-1098(00)00523-8 https://www.sciencedirect.com/science/article/pii/S0038109800005238?via%3Dihub |
| رقم الانضمام: | edsbas.E6B94B71 |
| قاعدة البيانات: | BASE |
| تدمد: | 00381098 |
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| DOI: | 10.1016/S0038-1098(00)00523-8 |