DSpace Repository

Investigation of the graphene thermal motion by rainbow scattering

Show simple item record

dc.contributor.author M., Ćosić
dc.contributor.author M., Ćosić
dc.contributor.author M., Hadžijojić
dc.contributor.author R., Rymzhanov
dc.contributor.author S., Petrović
dc.contributor.author S., Bellucci
dc.date.accessioned 2024-09-18T05:21:04Z
dc.date.available 2024-09-18T05:21:04Z
dc.date.issued 2019-04
dc.identifier.issn 00086223
dc.identifier.other DOI 10.1016/j.carbon.2019.01.020
dc.identifier.uri http://rep.enu.kz/handle/enu/16556
dc.description.abstract The thermal motion of graphene atoms was investigated using angular distributions of transmitted protons. The static proton-graphene interaction potential was constructed applying the Doyle-Turner's expression for the proton-carbon interaction potential. The effects of atom thermal motion were incorporated by averaging the static proton-graphene interaction potential over the distribution of atom displacements. The covariance matrix of graphene displacements was modeled according to the Debye theory, and calculated using Molecular Dynamics approach. Proton trajectories were used for construction of angular yields. We have found that there are lines, called rainbows, along which the angular yield is very large. Their evolution in respect to different sample orientation was examined in detail. Further we found that atom thermal motion has negligible influence on rainbows generated by protons experiencing distant collisions with the carbon atoms forming the graphene hexagon. On the other hand, rainbows generated by protons experiencing close collisions with the carbon atoms can be modeled by ellipses whose parameters are very sensitive to the structure of the covariance matrix. Numerical procedure was developed for extraction of the covariance matrix from the corresponding rainbow patterns in the general case, when atoms perform fully anisotropic and correlated motion. ru
dc.language.iso en ru
dc.publisher Carbon ru
dc.relation.ispartofseries Том 145,;Страницы 161 - 174
dc.subject Graphene ru
dc.subject Graphene nanoribbon ru
dc.subject Rainbow scattering ru
dc.subject Thermal motion ru
dc.subject Molecular dynamics ru
dc.title Investigation of the graphene thermal motion by rainbow scattering ru
dc.type Article ru


Files in this item

This item appears in the following Collection(s)

Show simple item record

Search DSpace


Browse

My Account