Abstract
In this work, the IX and IZ polarized infrared active modes in multi-walled boron nitride nanotubes (MWBNNTs) are computed using the spectral moment’s method. A Lennard-Jones potential is used to describe the van der Waals coupling interactions between the layers. We discuss the evolution of the low, intermediate and high wave number regions of the infrared spectra as a function of the inner tube diameter and the size of MWBNNTs. Our predictions are useful for understanding the experimental infrared spectra of MWBNNTs.
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