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Surface states and quasiparticle interference in Bernal and rhombohedral graphite with and without trigonal warping

Kaladzhyan, Vardan and Pinon, Sarah and Joucken, Frederic and Ge, Zhehao and Quezada-Lopez, Eberth A. and Taniguchi, T. and Watanabe, K. and Velasco, Jairo and Bena, Cristina. (2021) Surface states and quasiparticle interference in Bernal and rhombohedral graphite with and without trigonal warping. Physical Review B, 104 (15). p. 155418.

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Official URL: https://edoc.unibas.ch/85185/

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Abstract

We use an exact analytical technique [Phys. Rev. B 101, 115405 (2020), Phys. Rev. B 102, 165117 (2020)] to recover the surface Green's functions for Bernal (ABA) and rhombohedral (ABC) graphite. For rhombohedral graphite we recover the predicted surface flat bands. For Bernal graphite we find that the surface state spectral function is similar to the bilayer one, but the trigonal warping effects are enhanced, and the surface quasiparticles have a much shorter lifetime. We subsequently use the T-matrix formalism to study the quasiparticle interference patterns generated on the surface of semi-infinite ABA and ABC graphite in the presence of impurity scattering. We compare our predictions to experimental STM data of impurity-localized states on the surface of Bernal graphite which appear to be in a good agreement with our calculations.
Faculties and Departments:05 Faculty of Science > Departement Physik
UniBasel Contributors:Kaladzhyan, Vardan
Item Type:Article, refereed
Article Subtype:Research Article
Publisher:American Physical Society
ISSN:2469-9950
e-ISSN:2469-9969
Note:Publication type according to Uni Basel Research Database: Journal article
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Last Modified:22 Nov 2021 10:28
Deposited On:22 Nov 2021 10:28

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