Nanoscopic surface patterns of diblock copolymer thin films Junchai Zhao, Shizhe Tian, Qiang Wang, Xiaobo Liu, Shichun Jiang, Xiangling Ji, Lijia An and Bingzheng Jiang Eur. Phys. J. E, 16 1 (2005) 49-56 Published online: 31 January 2005 DOI: 10.1140/epje/e2005-00006-1