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Mechanical Oscillations and Charge Carriers in Nanostructures

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Abstract:

The Green’s functions technique suitable for broken symmetry structure analysis was developed. With the help of this new technique the phonon subsystem was analysed in ultrathin films and in cylindrical nanotubes with finite height. The most interesting results of mentioned analyses are spatial dependence of thermodynamical characteristics, existence of phonon gap and extremely low specific heat and thermal conductivity at low temperatures. This promises wide application of films and finite nanotubes in technology. The same technique was applied to investigate electron subsystems in rectangular nanostructures of all dimensions as well as in simple and full nanotubes. The most interesting conclusion of these analyses is the presence of autoreduction effect being the consequence of nonisomorphic transition configuration – momentum space. This effect represents a qualitative difference between nano and macroscopic structures. The skin effect is present in all types of nanostructures except nano-parallelepiped where antiskin effect takes place. The latter is quite understandable, since in nano-parallelepiped nodes are on boundaries.

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Periodical:

Materials Science Forum (Volume 518)

Pages:

47-50

DOI:

https://doi.org/10.4028/www.scientific.net/MSF.518.47

Citation:

Cite this paper

Online since:

July 2006

Authors:

B.S. Tošić, J.P. Šetrajčić, V.D. Sajfert, S.M. Vučenović, D.Lj. Mirjanić, S.K. Jaćimovski

Keywords:

Autoreduction, Green's Function Technique, Isomorphism, Nanostructure, Non-Isomorphism, Phonon Energy Gap, Skin Effect

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© 2006 Trans Tech Publications Ltd. All Rights Reserved

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References

[1] V. Sajfert, R. ðajić, M. Ćetković and B. Tošić: Nanotechnology Vol. 14 (2003), p.368.

Google Scholar

[2] B.S. Tošić: Statistical Physics (PMF, Novi Sad 1978) (in Serbian).

Google Scholar

[3] V. Sajfert, J.P. Šetrajčić, S. Jaćimovski and B. Tošić: Physica E: Low-dimensional Systems and Nanostructures Vol. 25.

DOI: 10.1016/j.physe.2004.07.008

Google Scholar

[4] (2004), p.479.

Google Scholar

[4] V. Sajfert, J. Šetrajčić, B. Tošić and R. ðajić: Czechoslovak Journal of Physics Vol. 54.

Google Scholar

[9] (2004), p.975.

Google Scholar

[5] J.M. Ziman: Principles of the Theory of Solids (Cambridge University Press, Cambridge 1972).

Google Scholar

[6] C. Kittel: Introduction to Solid State Physics (Wiley, New York 2005).

Google Scholar

[7] C. Guoyhong: Nanostructures & Nanomaterials (Imperial College Press, London 2004).

Google Scholar

[8] Nanostructure Science and Technology A Worldwide Study Prepared under the Guidance of the IWGN, NSTC Edited by R.W. Siegel, E. Hu, M.C. Roco WTEC, Loyola College in Maryland, http: /www. whitehouse. gov/WH/EOP/OSTP/NSTC/ (2004).

Google Scholar