摘要
The effect of annealing process in flowing nitrogen on the formation of super-conducting phases in Nd_(1.85)Ce_(0.15)CuO_(4-y) has been investigated.Two super-conductingphases with onset temperature Tcons of about 15 and 25K might be formed when the samples were annealed at various temperatures ranging from 850℃ to 870℃ and from 880℃ to 920℃,respectively.The dependence of Tcons on the annealing temperature was reported.
