title: Computation of the infrared active modes in single-walled boron nitride nanotube bundles.
abstract: In this work, the infrared active modes are computed for homogeneous  bundles of single-walled boron nitride nanotubes (BBNNTs), using the so-called spectral moments method. The dependence of the wavenumber on these modes in terms of diameters, lengths, and numbers of tubes, is investigated. To this end, use is made of a Lennard-Jones potential for describing the van der Waals interactions between tubes in a bundle. We find that, for a finite homogeneous bundle, additional modes appear as a specific signature. Finally, these results are useful for the interpretation of the experimental infrared spectra of BBNNTs.
authors: Laboratoire de Physique des Matériaux et Modélisation des Systèmes (URAC08), Université Moulay Ismaïl, Faculté des Sciences, PO Box 11201, Zitoune, 50000 Meknès, Morocco.
authors: B
authors: B
authors: Fakrach
authors: A
authors: A
authors: Rahmani
authors: H
authors: H
authors: Chadli
authors: K
authors: K
authors: Sbai
authors: M
authors: M
authors: Benhamou
authors: M
authors: M
authors: Bentaleb
authors: J-L
authors: JL
authors: Bantignies
authors: J-L
authors: JL
authors: Sauvajol