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VOLUME 57 (1993) | ISSUE 1 | PAGE 35
STM evidence of smallest rod presence in nanofilament carbon structure
Discovery of helical structure graphite mi ÅÇÏ tubes as well as wide-spread investigations of remarkable molecules óÂï and fullerenes with a greater number of carbon atoms turned scientists' attention to a search for carbon tubes of nanometer dimensions. Here we report the first observation by scanning tunneling microscope (STM) of carbon rods of the smallest diameter 0.8 nm in nanofilament films prepared by vacuum electron beam graphite evaporation. We suppose them to be tubelenes óÚÂ+|2Ð (containing 6 carbon hexagons in a belt) with molecular diameter of 8A .