OPTICALLY DETECTED LIBRONS AND PHONONS IN CRYSTALLINE C-60

被引：56

作者：

HOROYSKI, PJ

THEWALT, MLW

机构：

[1] Department of Physics, Simon Fraser University, Burnaby

来源：

PHYSICAL REVIEW B | 1993年 / 48卷 / 15期

关键词：

D O I：

10.1103/PhysRevB.48.11446

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Well-defined intermolecular modes of crystalline C60 were studied by means of Fourier-transform Raman and far-infrared spectroscopy. The librational modes are seen to gradually soften and broaden in energy as the temperature is raised from 10 to approximately 260 K at which point the libron intensity abruptly vanishes, consistent with the order-disorder phase transition. The librational modes, which are in general agreement with the less well-resolved neutron-scattering results, are found to be remarkably sharp at low temperature.

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页码：11446 / 11449

页数：4

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