Electronic Raman scattering and the Fano resonance in metallic carbon nanotubes

被引：27

作者：

Hasdeo, Eddwi H. ^{[1
]}

Nugraha, Ahmad R. T. ^{[1
]}

Sato, Kentaro ^{[1
,4
]}

Dresselhaus, Mildred S. ^{[2
,3
]}

Saito, Riichiro ^{[1
]}

机构：

[1] Tohoku Univ, Dept Phys, Sendai, Miyagi 9808578, Japan

[2] MIT, Dept Phys, Cambridge, MA 02139 USA

[3] MIT, Dept Elect Engn & Comp Sci, Cambridge, MA 02139 USA

[4] Sendai Natl Coll Technol, Sendai, Miyagi 9893128, Japan

来源：

PHYSICAL REVIEW B | 2013年 / 88卷 / 11期

基金：

美国国家科学基金会;

关键词：

SPECTROSCOPY;

D O I：

10.1103/PhysRevB.88.115107

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The Fano resonance spectra for the G band in metallic carbon nanotubes are calculated as a function of laser excitation energy, in which the origin of the resonance is given by an interference between the continuous electronic Raman spectra and the discrete phonon spectra. We found that the second-order scattering process of the q not equal 0 electron-electron interaction is more relevant to the continuous spectra rather than the q = 0 first-order process because the q = 0 direct Coulomb interaction vanishes due to the symmetry of the two sublattices of a carbon nanotube.

引用

页数：8

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