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Título: | Formation of one-dimensional quantum crystals of molecular deuterium inside carbon nanotubes |
Autor: | Cabrillo García, Carlos CSIC ORCID; Fernández-Perea, Ricardo CSIC ORCID; Bermejo, Francisco Javier CSIC ORCID; Chico, Leonor CSIC ORCID; Mondelli, C.; González, M. A.; Enciso, Eduardo; Benito, Ana M. CSIC ORCID ; Maser, Wolfgang K. CSIC ORCID | Palabras clave: | Quantum solids 1D crystals Confinement Molecular hydrogen Neutron scattering Sólidos quánticos Cristales 1D Confinamiento Hidrógeno molecular Difusión de neutrones |
Fecha de publicación: | 30-dic-2020 | Editor: | Elsevier | Citación: | Carbon 175: 141-154 (2021) | Resumen: | Crystallization under stringent cylindrical confinement leads to novel quasi-one-dimensional materials. Substances with strong cohesive interactions can eventually preserve the symmetries of their bulk phase compatible with the restricted geometry, while those with weak cohesive interactions develop qualitatively different structures. Frozen molecular deuterium (D2), a solid with a strong quantum character, is structurally held by weak dispersive forces. Here, the formation of one-dimensional D2 crystals under carbon nanotube confinement is reported. In contradiction with its weak cohesive interactions, their structures, scrutinized using neutron scattering, correspond to definite cylindrical sections of the hexagonal close-packed bulk crystal. The results are rationalized on the grounds of numerical calculations, which point towards nuclear quantum delocalization as the physical mechanism responsible for the stabilization of such outstanding structures. | Descripción: | 7 figures.-- Supplementary data available.-- © 2020. This manuscript version is made available under the CC-BY-NC-ND 4.0 license http://creativecommons.org/licenses/by-nc-nd/4.0/ | Versión del editor: | http://dx.doi.org/10.1016/j.carbon.2020.12.067 | URI: | http://hdl.handle.net/10261/226847 | DOI: | 10.1016/j.carbon.2020.12.067 | ISSN: | 0008-6223 |
Aparece en las colecciones: | (ICB) Artículos (CFMAC-IEM) Artículos (ICMM) Artículos |
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Postprint_Carbon_CCabrillo_SWCNT-Deuterium_2020.pdf | Artículo principal | 9,13 MB | Adobe PDF | Visualizar/Abrir |
Carbon_CCabrillo_SWCNT-Deuterium_2020_sup_data.pdf | Información suplementaria | 7,71 MB | Adobe PDF | Visualizar/Abrir |
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