Strain-Induced Interference Effects on the Resonance Raman Cross Section of Carbon Nanotubes

A. G. Souza Filho, N. Kobayashi, J. Jiang, A. Grüneis, R. Saito, S. B. Cronin, J. Mendes Filho, Ge. G. Samsonidze, G. Dresselhaus, and M. S. Dresselhaus
Phys. Rev. Lett. 95, 217403 – Published 17 November 2005

Abstract

In this Letter, we report the effects of strain on the electronic properties of single-wall carbon nanotubes. When we normalize the electronic transition energies to the corresponding values obtained for unstrained tubes, we obtain that, regardless of the tube diameter, all the data collapse onto universal curves following an nm=constant family pattern. In the case of metallic tubes, quantum interference effects on the Raman cross section are predicted for strained tubes when the energies of the lower and the upper components have nearly the same values. Experimental evidence for the strain-induced Raman cross section changes is observed in single nanotube spectroscopy.

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  • Received 19 February 2005

DOI:https://doi.org/10.1103/PhysRevLett.95.217403

©2005 American Physical Society

Authors & Affiliations

A. G. Souza Filho1,*, N. Kobayashi2, J. Jiang2, A. Grüneis2, R. Saito2, S. B. Cronin3, J. Mendes Filho1, Ge. G. Samsonidze4, G. Dresselhaus5, and M. S. Dresselhaus4,6

  • 1Departamento de Física, Universidade Federal do Ceará, Fortaleza-CE, 60455-760, Brazil
  • 2Department of Physics, Tohoku University, and CREST, JST, Sendai 980-8578, Japan
  • 3Department of Electrical Engineering, University of Southern California, Los Angeles, California 90089, USA
  • 4Department of Electrical Engineering and Computer Science, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139-4307, USA
  • 5Francis Bitter Magnet Laboratory, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139-4307, USA
  • 6Department of Physics, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139-4307, USA

  • *Electronic address: agsf@fisica.ufc.br

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Issue

Vol. 95, Iss. 21 — 18 November 2005

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