Raman spectral features of longer polyynes HC2nH (n = 4–8) in SWNTsT. Wakabayashi, T. Murakami, H. Nagayama, D. Nishide, H. Kataura, Y. Achiba, H. Tabata, S. Hayashi and H. ShinoharaEur. Phys. J. D, 52 1-3 (2009) 79-82DOI: https://doi.org/10.1140/epjd/e2009-00008-x