Tl-2212 thin films annealed in a Al2O3 crucible and a steel container Changhong Yi, Fangren Hu, Dongning Zheng, Qinggang Zhang, Yingfei Chen and Xiaoping Xu Eur. Phys. J. Appl. Phys., 37 1 (2007) 49-52 Published online: 13 December 2006 DOI: 10.1051/epjap:2006153