Bi,Al替DyIG量子点磁光材料的晶化温度研究  

Reseach on the crystal temperature of Bi, Al substituted DyIG quantum dots magneto - optical materials

作　　者：黄平[1] 张怀武[1] 刘颖力[1] 

机构地区：[1]电子科技大学微电子与固体电子学院,四川成都610054

出　　处：《云南大学学报（自然科学版）》2005年第S1期415-416,共2页Journal of Yunnan University(Natural Sciences Edition)

摘　　要：用传统的球磨、烧结的方法制备的石榴石材料的烧结温度约为1300℃,而用热分解法制备的量子点Al替DyIG石榴石磁光薄膜,生成石榴石相的晶化温度却在670℃左右,本文用量子点的量子隧道效应解释了量子点石榴石薄膜晶化温度降低的原因.并用原子力显微镜证实了用热分解法制备的量子点Bi,Al替石榴石在670℃的确已经完全结晶.The sintering temperature is about 1300 ℃ for traditional method prepared garnets materials, but the crystal temperature reduced to about 670℃ if we prepared Bi, Al substituted DyIG garnet magneto-optical films by pyrolysis. The reason for crystalline temperature reduced by the quantum tunnelling effect was explained. At the same time, the Bi, Al substituted garnet films crystal at the temperature of 670℃ through the observe of AFM(atom force microscopy) was assured.

关 键 词：量子点 宏观量子隧道效应 热分解 

分 类 号：TM27[一般工业技术—材料科学与工程]