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In this paper,changing patterns of electronic velocity and effective mass of the lowest conduction band for various carbon nanotubes are calculated systematically. Based on these calculation results,low-bias transport properties of single-walled carbon nanotubes (SWCNTs) and deduced thoroughly. It is found that under a low bias,chiral metallic SWCNTs belonging to the same series ( i.e,having the same chiral angles) have the entirely identical transport properties and are independent of diameter of the SWCNT. But those that belong to different series have obviously distinguishable transport properties. While for chiral semi-conducting SWCNTs belonging to the same series,they have some different transport properties. But those that belong to different series have greatly different transport properties. Our findings suggest that low-bias transport properties of SWCNTs are intimately related to the series and the chiral angle is the most important geometry parameter for the determination of different low-bias transport properties of various SWCNTs.
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Keywords:
- carbon nanotube /
- chiral angle /
- electronic velocity /
- electronic effective mass
[1] Baughman R H 2002 Science 297 787
[2] Ren Y,Chen K Q,Wan Q 2009 Appl. Phys. Lett. 94 183506
[3] Li X F,Chen K Q,Wang L L 2007 Appl. Phys. Lett. 91 133511
[4] Zhang Z H,Peng J C,Zhang H 2001 Appl. Phys. Lett. 79 3515
[5] Liu C P,Ding J W,Yan X H 2004 Acta. Phys. Sin. 53 3472 (in Chinese) [刘超平、丁建文、颜晓红 2004 53 3472]
[6] Yao Z G,Postma H W C,Balents L 1999 Nature 402 273
[7] Liang W,Xiao Y,Ding J W.2008 Acta. Phys.Sin. 57 3714 (in Chinese) [梁 维、肖 杨、丁建文 2008 57 3714]
[8] Ou Y Y,Peng J C,Wang H,Yi S P 2008 Acta Phys. Sin. 57 615 (in Chinese) [欧阳玉、彭景翠、王 慧、易双萍 2008 57 615]
[9] Collins P G,Zettle A,Bando H 1997 Science 278 100
[10] Chico L,Crespi V H,Benedict L X 1996 Phys. Rev. Lett. 76 971
[11] Wantae L 2010 Appl. Phys. Lett. 96 053510
[12] Marcos G 2010 Phys. Rev. B 81 012302
[13] Martins T B,Fazzio A,Silva A J R 2009 Phys. Rev. B 79 115413
[14] Brandbyge M,Mozos J L,Ordejón P 2002 Phys. Rev. B 65 165401
[15] Taylor J,Guo H,Wang J 2001 Phys. Rev. B 63 245407
[16] Lin M F 1998 Solid State Commun. 107 227
[17] Shyu F L 2010 J. Phys.: Condens. Matter. 22 025302
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[1] Baughman R H 2002 Science 297 787
[2] Ren Y,Chen K Q,Wan Q 2009 Appl. Phys. Lett. 94 183506
[3] Li X F,Chen K Q,Wang L L 2007 Appl. Phys. Lett. 91 133511
[4] Zhang Z H,Peng J C,Zhang H 2001 Appl. Phys. Lett. 79 3515
[5] Liu C P,Ding J W,Yan X H 2004 Acta. Phys. Sin. 53 3472 (in Chinese) [刘超平、丁建文、颜晓红 2004 53 3472]
[6] Yao Z G,Postma H W C,Balents L 1999 Nature 402 273
[7] Liang W,Xiao Y,Ding J W.2008 Acta. Phys.Sin. 57 3714 (in Chinese) [梁 维、肖 杨、丁建文 2008 57 3714]
[8] Ou Y Y,Peng J C,Wang H,Yi S P 2008 Acta Phys. Sin. 57 615 (in Chinese) [欧阳玉、彭景翠、王 慧、易双萍 2008 57 615]
[9] Collins P G,Zettle A,Bando H 1997 Science 278 100
[10] Chico L,Crespi V H,Benedict L X 1996 Phys. Rev. Lett. 76 971
[11] Wantae L 2010 Appl. Phys. Lett. 96 053510
[12] Marcos G 2010 Phys. Rev. B 81 012302
[13] Martins T B,Fazzio A,Silva A J R 2009 Phys. Rev. B 79 115413
[14] Brandbyge M,Mozos J L,Ordejón P 2002 Phys. Rev. B 65 165401
[15] Taylor J,Guo H,Wang J 2001 Phys. Rev. B 63 245407
[16] Lin M F 1998 Solid State Commun. 107 227
[17] Shyu F L 2010 J. Phys.: Condens. Matter. 22 025302
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