Rotation-vibrational dynamics of solid C 60 : A Raman study
Rotation-vibrational dynamics of solid C 60 : A Raman study
复制标题
固体 C 60 的旋转振动动力学：拉曼研究
DOI：
10.1103/physrevb.60.13351
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发表时间：
1999
期刊：
影响因子：
--
通讯作者：
C. Thomsen
中科院分区：
文献类型：
--
作者：
P. Rafailov;V. Hadjiev;A. Goñi;C. Thomsen
The rotational dynamics of ${\mathrm{C}}_{60}$ fullerites has been examined by measuring the Raman-active intramolecular modes at various temperatures. The linewidth of the ${H}_{g}$ modes increases significantly upon heating from slightly below (sc phase) to room temperature (fcc phase), whereas the broadening of the ${A}_{g}$ line is much weaker. We analyze these results considering the appearance of rotational satellite bands of the ${H}_{g}$ vibrational lines above ${T}_{c}=256 \mathrm{K}.$ We also discuss small additional contributions that may arise from rotation-vibrational interactions in both the fcc and sc phases of the ${\mathrm{C}}_{60}$ fullerite.
The rotational dynamics of ${\mathrm{C}}_{60}$ fullerites has been examined by measuring the Raman-active intramolecular modes at various temperatures. The linewidth of the ${H}_{g}$ modes increases significantly upon heating from slightly below (sc phase) to room temperature (fcc phase), whereas the broadening of the ${A}_{g}$ line is much weaker. We analyze these results considering the appearance of rotational satellite bands of the ${H}_{g}$ vibrational lines above ${T}_{c}=256 \mathrm{K}.$ We also discuss small additional contributions that may arise from rotation-vibrational interactions in both the fcc and sc phases of the ${\mathrm{C}}_{60}$ fullerite.