Temperature-Dependent Far-Infrared Absorption in Cyclotrimethylene Trinitramine Single Crystals Using Broadband Time-Domain Terahertz Spectroscopy  

作　　者：Yupeng Liu Jinchun Shi Chongyang Chen 刘羽鹏;史进春;陈重阳(Institute of Modern Physics,Fudan University,Shanghai 200433,China;The Peac Institute of Multiscale Sciences,Chengdu 610031,China)

机构地区：[1]Institute of Modern Physics,Fudan University,Shanghai 200433,China [2]The Peac Institute of Multiscale Sciences,Chengdu 610031,China

出　　处：《Chinese Physics Letters》2022年第1期46-50,共5页中国物理快报（英文版）

摘　　要：We investigate the absorption properties of cyclotrimethylene trinitramine(RDX) single crystals from ~15 to150 cm^(-1) using the terahertz time-domain spectroscopy. We observe that all the absorption modes exhibit strong anisotropic behavior in terms of the crystal orientations. We demonstrate that the anharmonic phonon model can well describe the temperature-dependent behaviors of these absorption modes. These results indicate that the intermolecular interaction plays a major role in the collective motion of large number of RDX molecules. Our findings provide important information for understanding and controlling the dynamic properties in the explosive materials.

关 键 词：spectroscopy ENE ABSORPTION 

分 类 号：O441.4[理学—电磁学] O657.3[理学—物理]