Raman evidence for pressure-induced formation of diamondene.

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dc.contributor.authorMartins, Luiz Gustavo Pimenta
dc.contributor.authorMatos, Matheus Josué de Souza
dc.contributor.authorPaschoal, Alexandre R.
dc.contributor.authorFreire, Paulo T. C.
dc.contributor.authorAndrade, Nádia Ferreira de
dc.contributor.authorAguiar, Acrisio Lins de
dc.contributor.authorKong, Jing
dc.contributor.authorNeves, Bernardo Ruegger Almeida
dc.contributor.authorOliveira, Alan Barros de
dc.contributor.authorMazzoni, Mario Sergio de Carvalho
dc.contributor.authorSouza Filho, Antonio Gomes
dc.contributor.authorCançado, Luiz Gustavo de Oliveira Lopes
dc.date.accessioned2018-02-01T13:51:52Z
dc.date.available2018-02-01T13:51:52Z
dc.date.issued2017
dc.description.abstractDespite the advanced stage of diamond thin-film technology, with applications ranging from superconductivity to biosensing, the realization of a stable and atomically thick two-dimensional diamond material, named here as diamondene, is still forthcoming. Adding to the outstanding properties of its bulk and thin-film counterparts, diamondene is predicted to be a ferromagnetic semiconductor with spin polarized bands. Here, we provide spectroscopic evidence for the formation of diamondene by performing Raman spectroscopy of double-layer graphene under high pressure. The results are explained in terms of a breakdown in the Kohn anomaly associated with the finite size of the remaining graphene sites surrounded by the diamondene matrix. Ab initio calculations and molecular dynamics simulations are employed to clarify the mechanism of diamondene formation, which requires two or more layers of graphene subjected to high pressures in the presence of specific chemical groups such as hydroxyl groups or hydrogens.pt_BR
dc.identifier.citationMARTINS, L. G. P. et al. Raman evidence for pressure-induced formation of diamondene. Nature Communications, v. 8, p. 96-105, 2017. Disponível em: <https://www.nature.com/articles/s41467-017-00149-8#additional-information>. Acesso em: 16 jan. 2018.pt_BR
dc.identifier.doihttps://doi.org/10.1038/s41467-017-00149-8
dc.identifier.issn2041-1723 
dc.identifier.urihttp://www.repositorio.ufop.br/handle/123456789/9404
dc.language.isoen_USpt_BR
dc.rightsabertopt_BR
dc.rights.licenseThis article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made. Fonte: o próprio artigo.pt_BR
dc.titleRaman evidence for pressure-induced formation of diamondene.pt_BR
dc.typeArtigo publicado em periodicopt_BR
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