期刊
CARBON
卷 98, 期 -, 页码 468-473出版社
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.carbon.2015.11.039
关键词
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资金
- National Natural Science Foundation of China [51121061, 51131002, 51372215]
- Key Basic Research Program of Hebei Province of China [12965135D]
- Natural Science Foundation for Distinguished Young Scholars of Hebei Province of China [E2013203265]
- NSERC program, Canada
- CRC program, Canada
- Russian Megagrant Project [14.B25.31.0030]
A new cubic three dimensional carbon phase has been predicted by first-principles calculations. This phase is constructed by triangle graphene sheets, and dubbed as sc-C-96. The investigation on its electronic properties has indicated that sc-C-96 possesses a topological nodal line semimetal state, which protected by the combination of time reversal and spatial inversion symmetries, and negligible spin-orbit interaction. Due to the cubic symmetry, the Fermi surface of sc-C-96 is constituted of three nodal line circles. From the cohesive energy and phonon spectra, we find that sc-C-96 is dynamically stable and may be easily synthesized by polymerizing C-96 fullerene molecules at a relatively low pressure conditions (similar to 1 GPa). (C) 2015 Elsevier Ltd. All rights reserved.
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