Supported by the National Natural Science Foundation of China under Grant No 50572001, and the National Basic Research Programme of China under Grant No 2006CD601004.
By a method of hybrid physical-chemical vapour deposition (HPCVD) on three metal substrates of stainless steel, copper and niobium, we deposit MgB2 superconducting films over 1 μm thickness. All of them have zero r...