[1] Iijima S 1991 Nature 354 56

[2] Svensson K et al 2004 Phys. Rev. Lett. 93
145901

[3] Jin-Phillipp N Y et al 2004 Phys. Rev. B 70
245421

[4] Chen J Z et al 2008 Chin. Phys. Lett. 25
1060

[5] Lu W and Lieber C M 2007 Nature Mater. 6 841

[6] Huang Y, Duan X et al 2001 Science 294 1313

[7] Hegger H et al 1996 Phys. Rev. Lett. 77 3885

[8] Sellmyer D J et al 2001 J. Phys.: Condens. Matter
13 R433

[9] Borgstr\"{om M T et al 2008 Nanotechnology
19 445602

[10] Poudyal N et al 2008 Nanotechnology 19
355601

[11] Ohnishi H et al 1998 Nature 395 780

[12] Li H, Zhang X Q et al 2007 J. Appl. Phys.
102 013702

[13] Zhang X Q et al 2007 J. Appl. Phys. 102
073709

[14] Okano S and Tom\'{anek D 2007 Phys. Rev. B
75 195409

[15] Wang J L et al 2002 Phys. Rev. B 66 085408

[16] Zhao J J et al 2000 Phys Rev. Lett. 85 1706

[17] Wang X X et al 2007 Mater. Res. Bull. 42
1669

[18] Zhang X et al 2009 Mater. Lett. 63 340

[19] Wu J et al 2007 Chem. Phys. Lett. 441 250

[20] Sivakumar V and Varadaraju U V 2008 J. Solid State
Chem. 181 3344

[21] Reich S, Thomsen C and Maultzsch J 2004 Carbon
Nanotubes: Basic Concepts and Physical Properties (Weinheim: Wiley)

[22] Delley B 1990 J. Chem. Phys. 92 508

[23] Wang Y and Perdew J P 1991 Phys. Rev. B 43
8911

[24] Datta S, Tian W et al 1997 Phys. Rev. Lett.
79 2530

[25] Zahid F, Paulsson M et al 2005 J. Chem. Phys.
123 064707

[26] Zahid F, Paulsson M and Datta S 2003 Advanced
Semiconductor and Organic Nano-techniques I$\!$I$\!$I: Physics and
Technology of Molecular and Biotechnology Systems ed Morko\c{c
(London: Academic)

[27] Paulsson M and Stafstrom S 2001 Phys. Rev. B
64 035416

[28] Ke S H, Yang W and Baranger H U 2006 J. Chem. Phys.
124 181102

[29] Bogozi A et al 2001 J. Am. Chem. Soc. 123
4585

[30] Ashcroft N, Mermin D 1976 Solid State Physics
(Philadelphia: Saunders College Publishing)

[31] Loiseau A, Launois P, Petit P, Roche S, Salvetat J-P 2006
Understanding Carbon Nanotubes: From Basics to Applications
(Berlin: Springer)

[32] Abrikosov A A 1988 Fundamentals of the theory of
metals (Amsterdam: North-Holland)

[33] Kane C L, Fisher M P A 1992 Phys. Rev. B 46
15233

[34] Hettler M H, Schoeller H and Wenzel W 2002 Europhys.
Lett. 57 571

[35] Reed M A 1997 Science 278 252