Two-dimensional electronic and vibrational band structure of uniaxially strained graphene from ab initio calculations

Mohr M, Papagelis K, Maultzsch J, Thomsen C (2009)

Publication Status: Published

Publication Type: Journal article

Publication year: 2009

Journal

Physical Review B American Physical Society

Publisher: AMER PHYSICAL SOC

Book Volume: 80

Article Number: 205410

Journal Issue: 20

DOI: 10.1103/PhysRevB.80.205410

Open Access Link: https://arxiv.org/abs/0908.0895

Abstract

We present an in-depth analysis of the electronic and vibrational band structure of uniaxially strained graphene by ab initio calculations. Depending on the direction and amount of strain, the Fermi crossing moves away from the K point. However, graphene remains semimetallic under small strains. The deformation of the Dirac cone near the K point gives rise to a broadening of the 2D Raman mode. In spite of specific changes in the electronic and vibrational band structure the strain-induced frequency shifts of the Raman active E(2g) and 2D modes are independent of the direction of strain. Thus, the amount of strain can be directly determined from a single Raman measurement.

Authors with CRIS profile

Janina Maultzsch Lehrstuhl für Experimentalphysik

Involved external institutions

Technische Universität Berlin DE Germany (DE) Foundation for Research and Technology-Hellas (FORTH) / Ίδρυμα Τεχνολογίας και Έρευνας GR Greece (GR)

How to cite

APA:

Mohr, M., Papagelis, K., Maultzsch, J., & Thomsen, C. (2009). Two-dimensional electronic and vibrational band structure of uniaxially strained graphene from ab initio calculations. Physical Review B, 80(20). https://doi.org/10.1103/PhysRevB.80.205410

MLA:

Mohr, Marcel, et al. "Two-dimensional electronic and vibrational band structure of uniaxially strained graphene from ab initio calculations." Physical Review B 80.20 (2009).

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