In this thesis, we calculate the energy states of one electron attracted by an impurity(hole) in finite carbon nanotubes. Comparing our calculations with Pederson¡¦s result, the ground state energy of the electron (attracted by an impurity in finite carbon nanotube) is close to the exciton binding energy in infinite carbon nanotube, but there is no bound state in short length carbon nanotubes.
Further more, we study energy states under an uniform magnetic along the z axes. The energy levels of the impurity vary in periods of an unit magnetic flux. And some of the energy states are degeneracy in short length carbon nanotubes but not in long length carbon nanotubes.
| Identifer | oai:union.ndltd.org:NSYSU/oai:NSYSU:etd-0209107-170236 |
| Date | 09 February 2007 |
| Creators | sie, con-yi |
| Contributors | Wang-Chuang Kuo, De-Hone Lin, S.J. Sun, Pi -Gang Luan |
| Publisher | NSYSU |
| Source Sets | NSYSU Electronic Thesis and Dissertation Archive |
| Language | Cholon |
| Detected Language | English |
| Type | text |
| Format | application/pdf |
| Source | http://etd.lib.nsysu.edu.tw/ETD-db/ETD-search/view_etd?URN=etd-0209107-170236 |
| Rights | campus_withheld, Copyright information available at source archive |
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