The radial breathing mode frequency in double-walled carbon nanotubes: an analytical approximation

2003 ◽  
Vol 237 (2) ◽  
pp. R7-R10 ◽  
Author(s):  
E. Dobardžić ◽  
J. Maultzsch ◽  
I. Milošević ◽  
C. Thomsen ◽  
M. Damnjanović
Keyword(s):  
Carbon Nanotubes ◽  
Radial Breathing Mode ◽  
Analytical Approximation ◽  
Mode Frequency ◽  
Breathing Mode ◽  
Double Walled Carbon Nanotubes ◽  
Walled Carbon Nanotubes

EFFECT OF TEMPERATURE CHANGE ON THE RADIAL BREATHING MODE FREQUENCY OF SINGLE-WALLED CARBON NANOTUBES

NANO ◽  
2013 ◽  
Vol 08 (05) ◽  
pp. 1350057 ◽  
Author(s):  
ESMAEAL GHAVANLOO ◽  
S. AHMAD FAZELZADEH
Keyword(s):  
Carbon Nanotubes ◽  
Environmental Temperature ◽  
Single Walled Carbon Nanotubes ◽  
Radial Breathing Mode ◽  
Effect Of Temperature ◽  
Geometrical Parameters ◽  
Breathing Mode ◽  
Single Walled Carbon ◽  
Walled Carbon Nanotubes ◽  
Good Agreement

In this paper, the effect of environmental temperature on the radial breathing mode (RBM) frequency of single-walled carbon nanotubes (SWNTs) with arbitrary chirality is investigated. The analytical formulation is developed which can link the frequency to the geometrical parameters of the SWCNT and environmental temperature. Good agreement between the present results and existing experimental data is found. The results show that the predicted RBM frequencies of the SWCNTs decrease with increasing of temperature. The softening of the C–C force constants in the SWCNT is responsible for the temperature-induced downshift in the RBM frequencies.

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