Determination of two-dimensional phonon dispersion relation of graphite by Raman spectroscopy -: art. no. 155405

被引：87

作者：

Grüneis, A

Saito, R

Kimura, T

Cançado, LG

Pimenta, MA

Jorio, A

Souza, AG

Dresselhaus, G

Dresselhaus, MS

机构：

[1] Univ Electrocommun, Dept Elect Engn, Tokyo 1828585, Japan

[2] Univ Fed Minas Gerais, Dept Fis, BR-30123970 Belo Horizonte, MG, Brazil

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

[4] Univ Fed Ceara, Dept Fis, BR-60455760 Fortaleza, Ceara, Brazil

[5] MIT, Francis Bitter Natl Magnet Lab, Cambridge, MA 02139 USA

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

来源：

PHYSICAL REVIEW B | 2002年 / 65卷 / 15期

关键词：

D O I：

10.1103/PhysRevB.65.155405

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Phonon dispersion relations of a two-dimensional (2D) graphite are obtained by fitting dispersive Raman modes that originate from nonzone center phonons near the Gamma or K point in the Brillouin zone (BZ). A new set of 12 force constants of 2D graphite up to the fourth neighbor are determined by a self-consistent fitting procedure, combined with double-resonance Raman theory. Analytical expressions for eigenvalues and eigenvectors at high symmetry points of the BZ are presented.

引用

页码：1554051 / 1554057

页数：7

共 25 条

[1] BOND SOFTENING IN MONOLAYER GRAPHITE FORMED ON TRANSITION-METAL CARBIDE SURFACES [J].