Electronic and vibrational excitations in carbon nanotubes

被引：12

作者：

Chiarello, G ^{[1
]}

Maccallini, E

Agostino, RG

Formoso, V

Cupolillo, A

Pacilé, D

Colavita, E

Papagno, L

Petaccia, L

Larciprete, R

Lizzit, S

Goldoni, A

机构：

[1] Univ Calabria, Ist Nazl Fis Mat, Unita Calabria, Dipartimento Fis, I-87036 Arcavacata Di Rende, CS, Italy

[2] Sincrotrone Trieste SCpA, I-34012 Trieste, Italy

[3] INFM, TASC, I-34012 Trieste, Italy

来源：

CARBON | 2003年 / 41卷 / 05期

关键词：

carbon nanotubes; graphite; electron energy loss spectroscopy; electronic properties;

D O I：

10.1016/S0008-6223(02)00421-9

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

We investigated the electronic and vibrational properties of single wall carbon nanotubes by reflection electron energy loss and X-ray absorption spectroscopies. We report on single particle excitations measured at the C-is edge and on collective excitations of the valence band region. The comparison between the two techniques allows us to locate empty electronic states of the carbonaceous sample. Loss spectra taken in the infrared region reveal two loss features at 90 and 170 mev assigned to the excitation of optical phonon modes. (C) 2002 Elsevier Science Ltd. All rights reserved.

引用

页码：985 / 992

页数：8

共 39 条

[1] ELECTRON-ENERGY-LOSS SPECTROSCOPY OF CARBON NANOMETER-SIZE TUBES [J].