XVI Russian Conference on Semiconductor Physics, October 7-11, 2024, St. Petersburg
Low dimensional systems

One-dimensional carbon structures formed on transition metal oxides

S. Yu. Davydov

Ioffe Institute, St. Petersburg, Russia

Abstract: We consider epitaxial cumulene as a carbon chain formed in a groove on a transi-tion metal oxide (TMO) face. A simple model of the density of states of TMO is pro-posed. A model of a one-dimensional analogue of graphene oxide (1DGO) has been constructed, which is a decorated cumulene, every second atom of which is bonded to an oxygen atom (C$_2$O). It has been shown that decoration leads to the opening of a gap in the electronic spectrum. Estimates of the influence of the TMO substrate (TiO$_2$) on the spectral characteristics, effective masses, and densities of states of cumulene and 1DGO are presented.

Keywords: cumulene, transition metal oxides, graphene oxide, electron spectrum.

Received: 25.11.2024
Revised: 16.12.2024
Accepted: 17.12.2024

DOI: 10.61011/FTT.2025.01.59788.321

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