The intrinsic temperature effect of the Raman spectra of graphite

被引：134

作者：

Tan, PH ^{[1
]}

Deng, YM ^{[1
]}

Zhao, Q ^{[1
]}

Cheng, WC ^{[1
]}

机构：

[1] Chinese Acad Sci, Inst Semicond, Natl Lab Superlattices & Microstruct, Beijing 100083, Peoples R China

来源：

APPLIED PHYSICS LETTERS | 1999年 / 74卷 / 13期

关键词：

D O I：

10.1063/1.123096

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

The Raman spectra of ion-implanted highly oriented pyrolytic graphite (HOPG) are reported, in which an additional mode at 1083 cm(-1) and three doublet structures in the positions of similar to 1350, similar to 2450, and similar to 2710 cm(-1) are revealed. Noticeable frequency shifts are observed for all the Raman bands between the spectra excited with different laser powers, which are interpreted as the pure temperature effect and a downshift in the C-C stretching frequency induced by the thermal expansion. Moreover, the pure temperature effect (d omega/dT)(V) without anharmonic contribution is achieved in pristine HOPG. The results suggest that the pure temperature effect without anharmonic contribution plays an important role in the frequency shifts with temperature. (C) 1999 American Institute of Physics. [S0003-6951(99)01313-3].

引用

页码：1818 / 1820

页数：3