Publikationsdatum:
2019
Beschreibung:
〈p〉Publication date: November 2019〈/p〉
〈p〉〈b〉Source:〈/b〉 Carbon, Volume 152〈/p〉
〈p〉Author(s): Jing-Yang You, Xing-Yu Ma, Zhen Zhang, Kuan-Rong Hao, Qing-Bo Yan, Xian-Lei Sheng, Gang Su〈/p〉
〈div xml:lang="en"〉
〈h5〉Abstract〈/h5〉
〈div〉〈p〉A structurally stable carbon allotrope with plentiful topological properties is predicted by means of first-principles calculations. This novel carbon allotrope possesses the simple space group C2/m, and contains simultaneously 〈em〉sp〈/em〉, 〈em〉sp〈/em〉〈sup〉2〈/sup〉 and 〈em〉sp〈/em〉〈sup〉3〈/sup〉 hybridized bonds in one structure, which is thus coined as carboneyane. The calculations on geometrical, vibrational, and electronic properties reveal that carboneyane, with good ductility and a much lower density 1.43 g/cm〈sup〉3〈/sup〉, is a topological metal with a pair of nodal lines traversing the whole Brillouin zone, such that they can only be annihilated in a pair when symmetry is preserved. The symmetry and topological protections of the nodal lines as well as the associated surface states are discussed. By comparing its x-ray diffraction pattern with experimental results, we find that three peaks of carboneyane meet with the detonation soot. On account of the fluffy structure, carboneyane is shown to have potential applications in areas of storage, adsorption and electrode materials.〈/p〉〈/div〉
〈/div〉
〈h5〉Graphical abstract〈/h5〉
〈div〉〈p〉〈figure〉〈img src="https://ars.els-cdn.com/content/image/1-s2.0-S0008622319306360-fx1.jpg" width="314" alt="Image 1" title="Image 1"〉〈/figure〉〈/p〉〈/div〉
Print ISSN:
0008-6223
Digitale ISSN:
1873-3891
Thema:
Chemie und Pharmazie
,
Geologie und Paläontologie
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