Comment on "diamond (111) surface reconstruction and epitaxial graphene interface"

Goletti C, Bechstedt F, Bussetti G, Ley L, Marsili M, Pulci O, Chiaradia P

Publication Language: English

Publication Type: Journal article, Note

Journal

Physical Review B American Physical Society

Book Volume: 111

Article Number: 117301

Journal Issue: 11

DOI: 10.1103/PhysRevB.111.117301

Abstract

In a recent paper by Reed et al. [Phys. Rev. B 105, 205304 (2022)10.1103/PhysRevB.105.205304], angle resolved photoemission spectroscopy (ARPES) experimental results as well as density functional theory (DFT) calculations performed on the diamond C(111)-(2×1) surface, both clean and graphene covered, are presented. We only address the first part of the paper (clean surface). On the basis of their photoemission data, the authors claim that the C(111)-(2×1) surface is metallic, adding that "our ARPES measurements do not compare well"with previous experimental results. Indeed, in the literature one can find a number of results obtained with different techniques, including ARPES, proving the semiconducting character of this surface. In this Comment we disagree with the interpretation of the experimental data given in the paper and conclude that the surface is semiconducting and any disagreement with published results is almost completely eliminated. We also discuss the theoretical approach used, placing it in a wider framework. When well founded, also the theoretical simulation shows the semiconducting character of the C(111)-(2×1) surface.

Authors with CRIS profile

Lothar Ley Naturwissenschaftliche Fakultät

Involved external institutions

University of Bologna / Università di Bologna IT Italy (IT) Università degli Studi di Roma 'Tor Vergata' IT Italy (IT) Politecnico di Milano IT Italy (IT) Friedrich-Schiller-Universität Jena DE Germany (DE)

How to cite

APA:

Goletti, C., Bechstedt, F., Bussetti, G., Ley, L., Marsili, M., Pulci, O., & Chiaradia, P. (2025). Comment on "diamond (111) surface reconstruction and epitaxial graphene interface". Physical Review B, 111(11). https://doi.org/10.1103/PhysRevB.111.117301

MLA:

Goletti, Claudio, et al. "Comment on "diamond (111) surface reconstruction and epitaxial graphene interface"." Physical Review B 111.11 (2025).

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