Observation of breathing-like modes in an individual multiwalled carbon nanotube.
Observation of breathing-like modes in an individual multiwalled carbon nanotube.
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DOI：
10.1021/nl102305a
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发表时间：
2010-10
期刊：
影响因子：
10.8
通讯作者：
C. Spudat;M. Müller;L. Houben;J. Maultzsch;K. Goss;C. Thomsen;C. Schneider;C. Meyer
中科院分区：
文献类型：
--
作者：
C. Spudat;M. Müller;L. Houben;J. Maultzsch;K. Goss;C. Thomsen;C. Schneider;C. Meyer
我们研究了多壁碳纳米管的拉曼光谱中的集体振动呼吸模式。在与高分辨率透射电子显微镜的相关性，我们发现，这些模式的能量从相应的单壁纳米管的径向呼吸模式的差异超过23%。这种能量转移解释与壳层间的相互作用，使用耦合谐振子模型。这种相互作用的强度与少层石墨烯预期的耦合强度有关。
We study collective vibrational breathing modes in the Raman spectrum of a multiwalled carbon nanotube. In correlation with high-resolution transmission electron microscopy, we find that these modes have energies differing by more than 23% from the radial breathing modes of the corresponding single-walled nanotubes. This shift in energy is explained with intershell interactions using a model of coupled harmonic oscillators. The strength of this interaction is related to the coupling strength expected for few-layer graphene.