Phonon frequency distribution function of aligned mutiwalled carbon nanotubes

Poonam Silotia; Seema Dabas; Aditya Saxena; S. P. Tewari

doi:10.1117/12.867993

24 August 2010 Phonon frequency distribution function in aligned multi-walled carbon nanotubes

Poonam Silotia, Seema Dabas, Aditya Saxena, S. P. Tewari

Proceedings Volume 7761, Carbon Nanotubes, Graphene, and Associated Devices III; 77610T (2010) https://doi.org/10.1117/12.867993
Event: SPIE NanoScience + Engineering, 2010, San Diego, California, United States

Abstract

It is shown that it is possible to obtain the phonon frequency distribution function (FDF) of aligned multi-walled carbon nanotubes (MWNT) by unfolding its temperature variation of specific heat in the temperature range 1.8-250 K. An anisotropic dynamical model which takes into account the presence of two-dimensional modes on the surface of the tube and the intertube coupling has been used as a trial function to carry out the unfolding process numerically. The aligned MWNT sample turns out to be somewhat similar to graphite.

Citation Download Citation

Poonam Silotia, Seema Dabas, Aditya Saxena, and S. P. Tewari "Phonon frequency distribution function in aligned multi-walled carbon nanotubes", Proc. SPIE 7761, Carbon Nanotubes, Graphene, and Associated Devices III, 77610T (24 August 2010); https://doi.org/10.1117/12.867993

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