Low-Temperature Phase Transformation from Graphite to sp(3) Orthorhombic Carbon
文献类型:期刊论文
作者 | Wang, JT ; Chen, CF ; Kawazoe, Y |
刊名 | PHYSICAL REVIEW LETTERS
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出版日期 | 2011 |
卷号 | 106期号:7 |
关键词 | X-RAY-DIFFRACTION HIGH-PRESSURE HEXAGONAL DIAMOND TRANSPARENT PHASE ROOM-TEMPERATURE GPA |
ISSN号 | 0031-9007 |
通讯作者 | Wang, JT: Chinese Acad Sci, Inst Phys, Beijing Natl Lab Condensed Matter Phys, Beijing 100190, Peoples R China. |
中文摘要 | We identify by ab initio calculations an orthorhombic carbon polymorph in Pnma symmetry that has the lowest enthalpy among proposed cold-compressed graphite phases. This new phase contains alternating zigzag and armchair buckled carbon sheets transformed via a one-layer by three-layer slip mechanism. It has a wide indirect band gap and a large bulk modulus that are comparable to those of diamond. Its simulated x-ray diffraction pattern best matches the experimental data. Pressure plays a key role in lowering the kinetic barrier during the phase conversion process. These results provide a comprehensive understanding and an excellent account for experimental findings. |
收录类别 | SCI |
资助信息 | NSFC of China [10974230]; CAS [KJCX2-YW-W22]; DOE [DE-FC52-06NA27684]; CREST |
语种 | 英语 |
公开日期 | 2013-09-18 |
源URL | [http://ir.iphy.ac.cn/handle/311004/41067] ![]() |
专题 | 物理研究所_物理所公开发表论文_物理所公开发表论文_期刊论文 |
推荐引用方式 GB/T 7714 | Wang, JT,Chen, CF,Kawazoe, Y. Low-Temperature Phase Transformation from Graphite to sp(3) Orthorhombic Carbon[J]. PHYSICAL REVIEW LETTERS,2011,106(7). |
APA | Wang, JT,Chen, CF,&Kawazoe, Y.(2011).Low-Temperature Phase Transformation from Graphite to sp(3) Orthorhombic Carbon.PHYSICAL REVIEW LETTERS,106(7). |
MLA | Wang, JT,et al."Low-Temperature Phase Transformation from Graphite to sp(3) Orthorhombic Carbon".PHYSICAL REVIEW LETTERS 106.7(2011). |
入库方式: OAI收割
来源:物理研究所
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