Nanowire formation by coalescence of small gold clusters inside carbon nanotubes B. Zhu, Y. X. Wang, Z. Y. Pan, D. Cheng and M. Hou Eur. Phys. J. D, 57 2 (2010) 219-226 Published online: 02 March 2010 DOI: 10.1140/epjd/e2010-00046-3