R. Macovez
Metal-to-insulator transition in thin-film polymeric AC(60)
Macovez, R.; Hunt, M.R.C.; Shan, J.J.; Goldoni, A.; Pichler, T.; Pedio, M.; Moras, P.; Castellarin-Cudia, C.; Schiessling, J.; Venema, L.; Rudolf, P.
Authors
Dr Michael Hunt m.r.c.hunt@durham.ac.uk
Associate Professor
J.J. Shan
A. Goldoni
T. Pichler
M. Pedio
P. Moras
C. Castellarin-Cudia
J. Schiessling
L. Venema
P. Rudolf
Abstract
We present an electron spectroscopy study of phase-pure AC(60) thin films (A = Rb, Cs) in their monomer (face-centred cubic (fcc)) and polymer phases. A surface electronic reconstruction is observed in polymeric RbC60, analogous to that reported for the fcc phase. As for pristine C-60, the occupied electronic states of AC(60) fullerides are not dramatically affected by polymerization. The energy separation between the leading feature in photoemission and inverse photoemission is similar in both stable AC(60) phases. These observations suggest that electron correlation effects are similar in the two phases, and that their different electronic behaviour is mainly related to the reduction of degeneracy of the polymer frontier states. Photoemission and electron-energy loss spectroscopy data show that the thin-film form of the RbC60 polymer is metallic at room temperature, and that it undergoes a metal-insulator transition at around 100 K. This transition temperature is much higher than that reported for the corresponding bulk phase and signals a poorer screening of Coulomb interactions at the film surface.
Citation
Macovez, R., Hunt, M., Shan, J., Goldoni, A., Pichler, T., Pedio, M., …Rudolf, P. (2009). Metal-to-insulator transition in thin-film polymeric AC(60). New Journal of Physics, 11(2), Article 023035. https://doi.org/10.1088/1367-2630/11/2/023035
Journal Article Type | Article |
---|---|
Online Publication Date | Feb 20, 2009 |
Publication Date | Feb 20, 2009 |
Deposit Date | Oct 7, 2010 |
Publicly Available Date | Aug 9, 2017 |
Journal | New Journal of Physics |
Publisher | IOP Publishing |
Peer Reviewed | Peer Reviewed |
Volume | 11 |
Issue | 2 |
Article Number | 023035 |
DOI | https://doi.org/10.1088/1367-2630/11/2/023035 |
Public URL | https://durham-repository.worktribe.com/output/1548235 |
Files
Published Journal Article
(1.1 Mb)
PDF
Publisher Licence URL
http://creativecommons.org/licenses/by-nc-sa/4.0/
Copyright Statement
This article is published under the Creative Commons Attribution-NonCommercial-ShareAlike 3.0 Unported (CC BY-NC-SA version 3.0) licence
You might also like
Linear vs. Non-linear Behaviour in Ion Irradiation Nanostructuring of Nickel and Silicon Surfaces
(2024)
Presentation / Conference Contribution
Few-Layer Graphene As an Electrode, Electrode Additive and an Interfacial Layer in Aqueous Supercapacitors
(2022)
Presentation / Conference Contribution
Materials for Sodium-Ion Batteries
(2020)
Book Chapter
Na-Ion Batteries
(2020)
Book Chapter
Downloadable Citations
About Durham Research Online (DRO)
Administrator e-mail: dro.admin@durham.ac.uk
This application uses the following open-source libraries:
SheetJS Community Edition
Apache License Version 2.0 (http://www.apache.org/licenses/)
PDF.js
Apache License Version 2.0 (http://www.apache.org/licenses/)
Font Awesome
SIL OFL 1.1 (http://scripts.sil.org/OFL)
MIT License (http://opensource.org/licenses/mit-license.html)
CC BY 3.0 ( http://creativecommons.org/licenses/by/3.0/)
Powered by Worktribe © 2024
Advanced Search