Families of Superhard Crystalline Carbon Allotropes Constructed via Cold Compression of Graphite and Nanotubes
文献类型：期刊论文
| 作者 | H. Y. Niu ; X. Q. Chen ; S. B. Wang ; D. Z. Li ; W. D. L. Mao ; Y. Y. Li |
| 刊名 | Physical Review Letters
 |
| 出版日期 | 2012 |
| 卷号 | 108期号:13 |
| 关键词 | x-ray-diffraction hexagonal diamond transparent phase room-temperature high-pressure transformation fullerenes c-60 gpa |
| ISSN号 | 0031-9007 |
| 中文摘要 | We report a general scheme to systematically construct two classes of structural families of superhard sp(3) carbon allotropes of cold-compressed graphite through the topological analysis of odd 5 + 7 or even 4 + 8 membered carbon rings stemmed from the stacking of zigzag and armchair chains. Our results show that the previously proposed M, bct-C-4, W and Z allotropes belong to our currently proposed families and that depending on the topological arrangement of the native carbon rings numerous other members are found that can help us understand the structural phase transformation of cold-compressed graphite and carbon nanotubes (CNTs). In particular, we predict the existence of two simple allotropes, R and P carbon, which match well the experimental x-ray diffraction patterns of cold-compressed graphite and CNTs, respectively, display a transparent wide-gap insulator ground state and possess a large Vickers hardness comparable to diamond. |
| 原文出处 | |
| 公开日期 | 2013-02-05 |
| 源URL | [http://ir.imr.ac.cn/handle/321006/60172]  |
| 专题 | 金属研究所_中国科学院金属研究所 |
| 推荐引用方式 GB/T 7714 | H. Y. Niu,X. Q. Chen,S. B. Wang,et al. Families of Superhard Crystalline Carbon Allotropes Constructed via Cold Compression of Graphite and Nanotubes[J]. Physical Review Letters,2012,108(13). |
| APA | H. Y. Niu,X. Q. Chen,S. B. Wang,D. Z. Li,W. D. L. Mao,&Y. Y. Li.(2012).Families of Superhard Crystalline Carbon Allotropes Constructed via Cold Compression of Graphite and Nanotubes.Physical Review Letters,108(13). |
| MLA | H. Y. Niu,et al."Families of Superhard Crystalline Carbon Allotropes Constructed via Cold Compression of Graphite and Nanotubes".Physical Review Letters 108.13(2012). |
入库方式： OAI收割
来源：金属研究所
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