Investigation of C_(60) Single Crystal by X-Ray Methods  

作　　者：LI Chaorong MAI Zhenhong WANG Gang WANG Yutian WU Lansheng CUI Shufan XIE Sishen JIANG Jianhua 

机构地区：[1]Institute of Physics,Academia Sinica,Beijing 100080 [2]Institute of Semiconductors,Academia Sinica,Beijing 100083 [3]Beijing Synchrotron Radiation Laboratory,P.O.Box 918,Beijing 100039

出　　处：《Chinese Physics Letters》1995年第4期217-220,共4页中国物理快报（英文版）

基　　金：Supported by BSRF;BEPC;the Chinese National Committee of Science and Technology。

摘　　要：C_(60) single crystals grown by a single-temperature-gradient technique were characterized by synchrotron radiation white beam x-ray topography and x-ray double crystal diffraction with Cu K_(α1) radiation on conventional x-ray source.The results show that the crystal is rather well crystallized.The x-ray topographies give an evidence of dendritic growth mechanism of C_(60) single crystal,and x-ray double crystal diffraction rocking curve shows that there are mosaic structural defects in the sample.A phase transition at 249±1.5K from a simple cubic to a face centered cubic structure is confirmed by in situ observation of synchrotron radiation white beam x-ray topography with the temperature varing from 230 to 295K.

关 键 词：CUBIC TOPOGRAPHY CRYSTAL 

分 类 号：TG1[金属学及工艺—金属学]