dc.contributor.author | Boi, F | en_US |
dc.contributor.author | Lee, CY | en_US |
dc.contributor.author | Wang, S | en_US |
dc.contributor.author | Wu, H | en_US |
dc.contributor.author | Li, L | en_US |
dc.contributor.author | Zhang, L | en_US |
dc.contributor.author | Song, J | en_US |
dc.contributor.author | Dai, Y | en_US |
dc.contributor.author | Taallah, A | en_US |
dc.contributor.author | Odunmbaku, O | en_US |
dc.contributor.author | Corrias, A | en_US |
dc.contributor.author | Baron-Wiechec, A | en_US |
dc.contributor.author | Zheng, S | en_US |
dc.contributor.author | Grasso, S | en_US |
dc.date.accessioned | 2024-03-27T09:04:59Z | |
dc.date.issued | 2024-06-01 | en_US |
dc.identifier.uri | https://qmro.qmul.ac.uk/xmlui/handle/123456789/95781 | |
dc.description.abstract | The recent observation of possible granular superconductivity in highly oriented pyrolytic graphite (HOPG) has attracted significant research interest. Here we report a novel investigation on the structural-properties of exfoliated-HOPG. We investigated two types of exfoliation methods, involving either a full (method-1) or partial (method-2) contact between adhesive tape and the main HOPG. Structural characterization was obtained by employing X-ray diffraction (XRD), Raman spectroscopy and electron microscopy (SEM). In particular, Raman point and mapping spectroscopy revealed significant structural-transitions from ABA (Bernal) to ABC (rhombohedral) stacking (stacking-faults), in those samples obtained with the method-2. Interestingly, strained regions exhibiting structural-deformations with a ridge-like morphology were reproducibly identified. The acquired Raman-spectra revealed a local enhancement of the D and D’ bands-intensity together with contributions arising from Electronic Raman Scattering (ERS) across the band-gap of rhombohedral-graphite, at middle (∼1870 cm−1) and high (∼ 2680 cm−1) frequency. HRTEM of the samples produced with the method-2 allowed also for the identification of local-coexistence of ripplocation-like defects with moiré superlattices, an indicator of non-uniform c-axis configuration. | en_US |
dc.relation.ispartof | Carbon Trends | en_US |
dc.rights | This is an open-access article distributed under the terms of the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License, which permits you to copy and redistribute in any medium or format, for non-commercial use only, provided that the original work is not remixed, transformed, or built upon, and that appropriate credit to the original source is given. For a full description of the license, please visit https://creativecommons.org/licenses/by-nc-nd/4.0/legalcode. | |
dc.rights | © 2024 The Author(s). Published by Elsevier Ltd. | |
dc.title | Rhombohedral stacking-faults in exfoliated highly oriented pyrolytic graphite | en_US |
dc.type | Article | |
dc.identifier.doi | 10.1016/j.cartre.2024.100345 | en_US |
pubs.notes | Not known | en_US |
pubs.publication-status | Accepted | en_US |
pubs.volume | 15 | en_US |
rioxxterms.funder | Default funder | en_US |
rioxxterms.identifier.project | Default project | en_US |