Resistance simulations for junctions of SW and MW carbon nanotubes with various metal substrates

• Autorzy: Yuri Shunin , Yuri Zhukovskii , Natalia Burlutskaya , Stefano Bellucci
• Języki publikacji: EN

Abstrakty

EN

This theoretical study focuses on junctions between the carbon nanotubes (CNTs) and contacting metallic elements of a nanocircuit. Numerical simulations on the conductance and resistance of these contacts have been performed using the multiple scattering theory and the effective media cluster approach. Two models for CNT-metal contacts have been considered in this paper: a) first principles “liquid metal” model and b) semi-empirical model of “effective bonds” based on Landauer notions on ballistic conductivity. Within the latter, which is a more adequate description of chirality effects, we have simulated both single-wall (SW) and multi-wall (MW) CNTs with different morphology. Results of calculations on resistance for different CNT-Me contacts look quantitatively realistic (from several to hundreds kOhm, depending on chirality, diameter and thickness of MW CNT). The inter-wall transparency coefficient for MW CNT has been also simulated, as an indicator of possible ‘radial current’ losses.

Słowa kluczowe

EN

Carbon nanotubes; SW and MW morphology; junction between the CNT and metal substrate; scattering theory; electronic structure calculations; resistance of CNT-Me contact; inter-wall transparency in MW CNTs

• Czasopismo: Open Physics
• Rocznik: 2011
• Tom: 9
• Numer: 2
• Strony: 519-529

Daty

wydano

2011-04-01

online

2011-02-20

Twórcy

autor

Yuri Shunin,

autor

Yuri Zhukovskii

• Institute of Solid State Physics, University of Latvia, Riga, Latvia,

autor

Natalia Burlutskaya

• Information Systems Management Institute, Riga, Latvia,

autor

Stefano Bellucci

• INFN-Laboratori Nazionali di Frascati, Via Enrico Fermi 40, Frascati, Italy,

Bibliografia

• [1] M. Ahlskog, Ch. Laurent, M. Baxendale, M. Huhtala, In: H. S. Nalwa (Ed.), Encyclopedia of Nanoscience and Nanotechnology, Vol. 3 (American Sci. Publishers, Valencia, CA, 2004) 139
• [2] M.S. Dresselhaus, G. Dresselhaus, P.C. Eklund, Science of Fullerenes and Carbon Nanotubes (Academic, San Diego, 1996)
• [3] S.J. Tans, R.M. Verschueren, C. Dekker, Nature 393, 49 (1998) http://dx.doi.org/10.1038/29954[Crossref]
• [4] J. Tersoff, Appl. Phys. Lett. 74, 2122 (1999) http://dx.doi.org/10.1063/1.123776[Crossref]
• [5] Yu.N. Shunin, K.K. Schwartz, In: R.C. Tennyson, A.E. Kiv (Eds.), Computer Modelling of Electronic and Atomic Processes in Solids (Kluwer Acad. Publisher, Dodrecht, Boston, London, 1997) 241
• [6] Yu.N. Shunin, DSc Habil. thesis, University of Latvia (Riga-Salaspils, Latvia, 1991)
• [7] E.L. Economou, Green’s Functions in Quantum Physics, 3rd edition, Solid State Ser. Vol. 7 (Springer Verlag, Berlin, Heidelberg, 2006)
• [8] J.M. Ziman, Models of Disorder (Cambridge Univ. Press, London, New York, 1979)
• [9] R. Gaspar, Acta Phys. Acad. Sci. Hung. 2, 15 (1952)
• [10] R. Gaspar, Acta Phys. Acad. Sci. Hung. 3, 263 (1954) http://dx.doi.org/10.1007/BF03156228[Crossref]
• [11] J.C. Slater, The Self-Consistent Field for Molecules and Solids, Vol. 4 (McGraw-Hill Book Company, New York, 1974)
• [12] H. Ehrenreich, L. Schwartz, The Electronic Structure of Alloys, Solid State Phys. Vol. 31 (Academic Press, New York, San Francisco, London, 1976)
• [13] M.F. Lin, K.W.-K. Shung, Phys. Rev. B 47, 6617 (1993) http://dx.doi.org/10.1103/PhysRevB.47.6617[Crossref]
• [14] G. Gumbs, G.R. Aizin, Phys. Rev. B 65, 195407 (2002) http://dx.doi.org/10.1103/PhysRevB.65.195407[Crossref]
• [15] G. Gumbs, A. Balassis, Phys. Rev. B 71, 235410 (2005) http://dx.doi.org/10.1103/PhysRevB.71.235410[Crossref]
• [16] Yu.N. Shunin, Yu.F. Zhukovskii, S. Bellucci, Computer Modellingand New Technologies 12(2), 66 (2008)
• [17] P. Soven, Phys. Rev. 156, 809 (1967) http://dx.doi.org/10.1103/PhysRev.156.809[Crossref]
• [18] D. Stone, A. Szafer, IBMJ. Res. Dev. 32, 384 (1988) http://dx.doi.org/10.1147/rd.323.0384[Crossref]
• [19] F. Ding et al., Nano Lett. 8, 463 (2008) http://dx.doi.org/10.1021/nl072431m[Crossref]
• [20] Yu.N. Shunin, In: H. Dosch, M.H. Van de Voorde (Eds.), GENNESYS White Paper (Max-Planck-Institutfür Metallforschung, Stuttgart, 2009) 8
• [21] S. Uryu, Phys. Rev. B 69, 075402 (2004) http://dx.doi.org/10.1103/PhysRevB.69.075402[Crossref]
• [22] A.M. Lunde, K. Flensberg, A.-P. Jauho, Phys. Rev. B 71, 125408 (2005) http://dx.doi.org/10.1103/PhysRevB.71.125408[Crossref]
• [23] Z. Kordrostami, M.H. Sheikhi, R. Mohammadzadegan, Fuller. Nanotub. Car. N. 16, 66 (2008) http://dx.doi.org/10.1080/15363830701783713[Crossref]
• [24] J.-O. Lee, J. Phys. D: Appl. Phys. 33, 1953 (2000) http://dx.doi.org/10.1088/0022-3727/33/16/303[Crossref]

Identyfikatory

DOI

10.2478/s11534-010-0086-9