期刊
SCIENCE
卷 337, 期 6096, 页码 825-828出版社
AMER ASSOC ADVANCEMENT SCIENCE
DOI: 10.1126/science.1220522
关键词
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资金
- EFree, an Energy Frontier Research Center
- U.S. Department of Energy (DOE), Office of Science [DE-SC0001057]
- Carnegie Institute of Washington, Carnegie DOE Alliance Center, University of Nevada at Las Vegas
- Lawrence Livermore National Laboratory
- DOE National Nuclear Security Administration
- DOE Basic Energy Sciences
- National Science Foundation (NSF) [DMR-0805056, EAR 06-49658]
- Office of Science of the DOE [DE-AC05-00OR22725]
- Holland Computing Center at the University of Nebraska
- National Natural Science Foundation of China (NSFC) [11004072]
- Program for New Century Excellent Talents in University (NCET)
- Directorate For Geosciences
- Division Of Earth Sciences [911492] Funding Source: National Science Foundation
- Division Of Earth Sciences
- Directorate For Geosciences [1119504] Funding Source: National Science Foundation
Solid-state materials can be categorized by their structures into crystalline (having periodic translation symmetry), amorphous (no periodic and orientational symmetry), and quasi-crystalline (having orientational but not periodic translation symmetry) phases. Hybridization of crystalline and amorphous structures at the atomic level has not been experimentally observed. We report the discovery of a long-range ordered material constructed from units of amorphous carbon clusters that was synthesized by compressing solvated fullerenes. Using x-ray diffraction, Raman spectroscopy, and quantum molecular dynamics simulation, we observed that, although carbon-60 cages were crushed and became amorphous, the solvent molecules remained intact, playing a crucial role in maintaining the long-range periodicity. Once formed, the high-pressure phase is quenchable back to ambient conditions and is ultra-incompressible, with the ability to indent diamond.
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