Temperature Dependence of the Coherent Radial Breathing Mode Oscillations in Single Walled Carbon Nanotubes

Author

Kim, Ji-Hee ; Han, Kang-Jeon ; Chang, Dong-Wook ; Kim, Nam-Je ; Yee, Ki-Ju ; Lim, Yong-Sik ; Haroz, Erik H. ; Kono, J.

Author_Institution

Dept. of Phys., Chungnam Nat. Univ., Daejeon

fYear

2007

fDate

26-31 Aug. 2007

Firstpage

1

Lastpage

2

Abstract

We report on temperature dependence of the radial breathing mode(RBM) frequency and its decay time in single walled carbon nanotubes (SWCNTs), which were studied by the femtosecond pump and probe technique. With increasing temperature, we found out that the RBM frequency and phonon decay time shows on abnormal dramatic change around 70degC for a certain type of carbon nanotubes, which may be originated from the surfactant effect.

Keywords

carbon nanotubes; high-speed optical techniques; oscillations; C; coherent radial breathing mode oscillations; femtosecond probe technique; femtosecond pump technique; phonon decay time; single walled carbon nanotubes; surfactant effect; temperature dependence; Carbon nanotubes; Frequency; Laser excitation; Lattices; Phonons; Pulse measurements; Temperature dependence; Temperature measurement; Time measurement; Vibration measurement;

fLanguage

English

Publisher

ieee

Conference_Titel

Lasers and Electro-Optics - Pacific Rim, 2007. CLEO/Pacific Rim 2007. Conference on

Conference_Location

Seoul

Print_ISBN

978-1-4244-1173-3

Electronic_ISBN

978-1-4244-1174-0

Type

conf

DOI

10.1109/CLEOPR.2007.4391778

Filename

4391778