【摘 要】
：
We investigate the absorption properties of cyclotrimethylene trinitramine (RDX) single crystals from ～15 to 150 cm-1 using the terahertz time-domain spectroscopy.We observe that all the absorption modes exhibit strong anisotropic behavior in terms of the
【机 构】
：
Institute of Modern Physics,Fudan University,Shanghai 200433,China;The Peac Institute of Multiscale
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We investigate the absorption properties of cyclotrimethylene trinitramine (RDX) single crystals from ～15 to 150 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.
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