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本文报道了Ba-Ce-Cu-O的一种新相,它是立方BaCeO_3的一种超格子a=6.208 b=6.232(a、b～2~1/2ap)c=8.759(c～2ap)其空间群为PMMM。化学分析、热天平和结构分析表明其结构化学式为(Ba_(2.650)Ce_(0.175))(Cu_3Ce_(1.237)O_(10.452),在单相时,它是一个绝缘体。
In this paper, a new phase of Ba-Ce-Cu-O is reported. It is a super lattice of cubic BaCeO_3 a = 6.208 b = 6.232 (a, b ~ 2 ~ 1/2) c = 8.759 (c ~ 2ap) Its space group is PMMM. Chemical analysis, thermobalance and structural analysis show that the structural formula is Ba_ (2.650) Ce_ (0.175) (Cu_3Ce_ (1.237) O_ (10.452)), which is an insulator in single phase.