本文利用紧束缚模型,推导了单壁碳纳米管中π电子的能带表达式,在此基础上着重分析了以下特性:找出了金属性和半导体性单壁碳纳米管的判据;采用等能线图,在布里渊区内描述了π电子的能量分布;计算了π电子在简约布里渊区具有高对称性点的有效质量.
参考文献
| [1] | Mintmire J W;Dunlap B I;White C T .Are Fullerene Tubules Metallic?[J].Physical Review Letters,1992,68(05):631-634. |
| [2] | Yi J Y;Bernhoic J .Atomic Structure and Doping Microtubules[J].Physical Review,1993,B47(03):1708-1711. |
| [3] | Satio R;Fujita M;Dresselhaus G et al.Electroic Structure of Grapheme Tubules Based on C60[J].Physical Review,1992,B46(03):1804-1811. |
| [4] | 张红群.扶手椅形碳纳米管的Peierls相变研究[J].物理学报,2000(05):936-938. |
| [5] | Hamada N;Sawada S;Oshiyama A .New One-dimensional Conductor Graphi-tic Microtubules[J].Physical Review Letters,1992,68(10):1579-1581. |
| [6] | Mintmire JW.;White CT. .Universal density of states for carbon nanotubes[J].Physical review letters,1998(12):2506-2509. |
| [7] | Ostling D.;Rosen A.;Tomanek D. .ELECTRONIC STRUCTURE OF SINGLE-WALL, MULTIWALL, AND FILLED CARBON NANOTUBES[J].Physical Review.B.Condensed Matter,1997(20):13980-13988. |
| [8] | Rochefort A.;Lesage F.;Salahub DR.;Avouris P. .Electrical and mechanical properties of distorted carbon nanotubes[J].Physical Review.B.Condensed Matter,1999(19):13824-13830. |
| [9] | Ago H;Shaffer M S P;Ginqer D S et al.Electronic Interaction between Photoexcited Poly(p-phenylene vinylene) and Carbon Nanotubes[J].Physical Review,2000,B61(03):2286-2290. |
| [10] | Kwon YK.;Tomanek D. .Electronic and structural properties of multiwall carbon nanotubes[J].Physical Review.B.Condensed Matter,1998(24):R16001-R16004. |
| [11] | 郭连权 .碳纳米管的制备、储氢与其能带计算[D].东北大学,2004. |
| [12] | 陆栋;蒋平;徐至中.固体物理学[M].上海:上海科学技术出版社,2003 |
| [13] | 谢希德;陆栋.固体能带理论[M].上海:复旦大学出版社,1998 |
| [14] | 方俊鑫;陆栋.固体物理学[M].上海:上海科学技术出版社,1988 |
| [15] | Kane CL;Mele EJ .Size, shape, and low energy electronic structure of carbon nanotubes[J].Physical review letters,1997(10):1932-1935. |
| [16] | Chico L;Crespi V H;Benedict L X et al.Pure Carbon Nanoscale Devices:Nanotube Heterojunctions[J].Physical Review Letters,1996,76(06):971-974. |
| [17] | Crespi VH;Cohen ML;Rubio A;UNIV CALIF BERKELEY LAWRENCE BERKELEY LAB DIV MAT SCI BERKELEY CA 94720.;UNIV VALLADOLID DEPT FIS TEOR E-47011 VALLADOLID SPAIN. .In situ band gap engineering of carbon nanotubes[J].Physical review letters,1997(11):2093-2096. |
| [18] | Park CJ.;Chang KJ.;Kim YH. .Band-gap modification by radial deformation in carbon nanotubes[J].Physical Review.B.Condensed Matter,1999(15):10656-10659. |
| [19] | Maiti A.;Svizhenko A.;Anantram MP. .Electronic transport through carbon nanotubes: Effects of structural deformation and tube chirality - art. no. 126805[J].Physical review letters,2002(12):6805-0. |
| [20] | Lammert PE.;Crespi VH.;Zhang PH. .Gapping by squashing: Metal-insulator and insulator-metal transitions in collapsed carbon nanotubes[J].Physical review letters,2000(11):2453-2456. |
上一张
下一张
上一张
下一张
计量
- 下载量()
- 访问量()
文章评分
- 您的评分：
-
10%
-
20%
-
30%
-
40%
-
50%