Structural Transition of Gd2O3:Eu Induced by High Pressure
CHEN Hai-Yong1, HE Chun-Yuan1, GAO Chun-Xiao1, ZHANG Jia-Hua2, GAO Shi-Yong1, LU Hong-Liang1, NIE Yan-Guang1, LI Dong-Mei1, KAN Shi-Hai1, ZOU Guang-Tian1
1State Key Laboratory of Super Hard Materials, Jilin University, Changchun 130012
2Key Laboratory of Excited State Processes, Changchun Institute of Optics, Fine Mechanics and Physics, Chinese Academy of Sciences, Changchun 130033
Structural Transition of Gd2O3:Eu Induced by High Pressure
1State Key Laboratory of Super Hard Materials, Jilin University, Changchun 130012
2Key Laboratory of Excited State Processes, Changchun Institute of Optics, Fine Mechanics and Physics, Chinese Academy of Sciences, Changchun 130033
Abstract： The structural transition of bulk and nano-size Gd2O3:Eu are studied by high pressure energy disperse x-ray diffraction (XRD) and high pressure photoluminescence. Our results show that in spite of different size of Gd2O3 particles, the cubic structure turns into a possible hexagonal one above 13.4GPa. When the pressure is released, the sample reverses to the monoclinic structure. No cubic structure presents in the released samples. That is to say, the compression and relaxation of the sample leads to the cubic Gd2O3:Eu then turns into the monoclinic one.
CHEN Hai-Yong;HE Chun-Yuan;GAO Chun-Xiao;ZHANG Jia-Hua;GAO Shi-Yong;LU Hong-Liang;NIE Yan-Guang;LI Dong-Mei;KAN Shi-Hai;ZOU Guang-Tian. Structural Transition of Gd2O3:Eu Induced by High Pressure[J]. 中国物理快报, 2007, 24(1): 158-160.
CHEN Hai-Yong, HE Chun-Yuan, GAO Chun-Xiao, ZHANG Jia-Hua, GAO Shi-Yong, LU Hong-Liang, NIE Yan-Guang, LI Dong-Mei, KAN Shi-Hai, ZOU Guang-Tian. Structural Transition of Gd2O3:Eu Induced by High Pressure. Chin. Phys. Lett., 2007, 24(1): 158-160.
2007, Vol. 24 
