Amorphous phase 2.6A ~5.9A ~1.6A 5nm Co structure Zsolt Czigany and Lars Hultman,Interpretation of electron diffraction patterns from amorphous and fullerene-like carbon allotropes,2010,Ultramicroscopy,(110),7,815-819. 8 http://dx.doi.org/10.1016/j.ultramic.2010.02.005Amorphous phase 8 Zsolt Czigany and Lars Hultman, Interpretation of electron diffraction patterns from amorphous and fullerene-like carbon allotropes, 2010, Ultramicroscopy, (110), 7, 815-819. http://dx.doi.org/10.1016/j.ultramic.2010.02.005 C20 structure