Formation of an array of isolated alumina nanotubes Y. F. Mei, X. L. Wu, X. F. Shao, G. G. Siu and X. M. Bao Europhys. Lett., 62 4 (2003) 595-599 Published online: 01 May 2003 DOI: 10.1209/epl/i2003-00392-7