Raman study of metallic carbon nanotubes at elevated pressure

被引：17

作者：

Christofilos, D. ^{[1
]}

Arvanitidis, J.

Tzampazis, C.

Papagelis, K.

Takenobu, T.

Iwasa, Y.

Kataura, H.

Lioutas, C.

Ves, S.

Kourouklis, G. A.

机构：

[1] Aristotle Univ Thessaloniki, Div Phys, Sch Technol, Thessaloniki 54124, Greece

[2] Univ Patras, Dept Mat Sci, Patras 26504, Greece

[3] CREST, Japan Sci & Technol Corp, Kawaguchi 3320012, Japan

[4] Tohoku Univ, Mat Res Inst, Aoba Ku, Sendai, Miyagi 9808577, Japan

[5] Natl Inst AIST, Tsukuba, Ibaraki 3058562, Japan

[6] Aristotle Univ Thessaloniki, Dept Phys, Thessaloniki 54124, Greece

来源：

关键词：

nanotubes; optical properties; phonons; nanotechnology;

D O I：

10.1016/j.diamond.2005.11.027

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Raman spectroscopy has been employed in the study of the high pressure response of metallic single-(SWCNTs) and double-wall carbon nanotubes (DWONTs). Besides a variety of pressure induced changes, such as the deformation of SWCNTs and the DWCNT cuter tubes, as well as the quasi-isolation of the inner tubes, a narrowing of the characteristic Breit-Wigner-Fano Raman peak is also observed. As the width and asymmetry of this peak reflects the coupling of the vibrational mode to an electronic continuum, its pressure induced narrowing can be ascribed to a decoupling process, possibly connected to the enhanced tube-tube interaction and the deformation of the tubes at elevated pressures. (c) 2006 Elsevier B.V. All rights reserved.

引用

页码：1075 / 1079

页数：5

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