Strength of radial breathing mode in single-walled carbon nanotubes

Machon M, Reich S, Telg H, Maultzsch J, Ordejon P, Thomsen C (2005)

Publication Status: Published

Publication Type: Journal article

Publication year: 2005

Journal

Physical Review B American Physical Society

Publisher: AMERICAN PHYSICAL SOC

Book Volume: 71

Journal Issue: 3

DOI: 10.1103/PhysRevB.71.035416

Abstract

We show by ab initio calculations that the electron-phonon coupling matrix element Me-ph of the radial breathing mode in single-walled carbon nanotubes depends strongly on tube chirality. For nanotubes of the same diameter the coupling strength \Me-ph\(2) is up to one order of magnitude stronger for zigzag tubes than for armchair tubes. For (n(1),n(2)) tubes Me-ph depends on the value of (n(1)-n(2)) mod 3, which allows us to discriminate semiconducting nanotubes with similar diameter by their Raman scattering intensity. We show measured resonance Raman profiles of the radial breathing mode which support our theoretical predictions.

Authors with CRIS profile

Janina Maultzsch Lehrstuhl für Experimentalphysik

Involved external institutions

Technische Universität Berlin DE Germany (DE) Freie Universität Berlin DE Germany (DE) Institut Català de Nanociència i Nanotecnologia (ICN2) ES Spain (ES)

How to cite

APA:

Machon, M., Reich, S., Telg, H., Maultzsch, J., Ordejon, P., & Thomsen, C. (2005). Strength of radial breathing mode in single-walled carbon nanotubes. Physical Review B, 71(3). https://dx.doi.org/10.1103/PhysRevB.71.035416

MLA:

Machon, Maria, et al. "Strength of radial breathing mode in single-walled carbon nanotubes." Physical Review B 71.3 (2005).

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