A symmetry based approach to evaluation of carbon nanotube electronic hyperpolarizability

✍ Scribed by L. De Dominicis; R. Fantoni; S. Botti; L. Asilyan

• Book ID: 102443867
• Publisher: John Wiley and Sons
• Year: 2004
• Tongue: English
• Weight: 101 KB
• Volume: 1
• Category: Article
• ISSN: 1612-2011
• DOI: 10.1002/lapl.200410128

✦ Synopsis

The properties of the carbon nanotubes (CNTs)
hyperpolarizability β due to π electrons is studied by
using the formalism of the irreducible representations of CNT
space symmetry group (G). The main contribution to the
second order nonlinearity is demonstrated to come from electrons
at the origin of the Brillouin zone (k=0). Within this scheme, a
description based on the isogonal point group associated to
G accounts for the relevant properties of β.