Symmetry Properties of Single-Walled BC2N Nanotubes
1 Department of Physics, National University of Singapore, 2 Science Drive 2, 117542, Singapore, Singapore
2 Environmental Science Division, Oak Ridge National Laboratory, 37831, Oak Ridge, TN, USA
3 Institute of Chemical and Engineering Sciences, 1 Pesek Road, 627833, Jurong Island, Singapore
Nanoscale Research Letters 2009, 4:498-502 doi:10.1007/s11671-009-9272-3Published: 24 February 2009
The symmetry properties of the single-walled BC2N nanotubes were investigated. All the BC2N nanotubes possess nonsymmorphic line groups. In contrast with the carbon and boron nitride nanotubes, armchair and zigzag BC2N nanotubes belong to different line groups, depending on the index n (even or odd) and the vector chosen. The number of Raman- active phonon modes is almost twice that of the infrared-active phonon modes for all kinds of BC2N nanotubes.