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- Title
- Size effects on excitons in nano-rings
- Author(s)
- Hu, Hui; Li, Dai-Jun; Zhu, Jia-Lin; Xiong, Jia-Jiong
- Abstract
- The size effects on an exciton in a nano-ring are investigated theoretically by using an effective-mass Hamiltonian which can be separated into terms in centre-of-mass and relative coordinates. The binding energy and oscillator strength of the ground state are calculated for two different ring radii as functions of the ring width. The resulting linear optical susceptibility of the low-lying exciton states is also discussed.
- Publication type
- Journal article
- Source
- Journal of Physics: Condensed Matter, Vol. 12, no. 43 (Oct 2000), pp. 9145-9151
- Publication year
- 2000
- FOR Code(s)
- 0204 Condensed Matter Physics; 0206 Quantum Physics; 1007 Nanotechnology
- Keyword(s)
- Excitons; Nanoscale materials
- Publisher
- Institute of Physics Publishing
- ISSN
- 0953-8984
- Publisher URL
- http://dx.doi.org/10.1088/0953-8984/12/43/304
- Copyright
- Copyright © 2000 IOP Publishing Ltd. The accepted manuscript of the paper is reproduced here in accordance with the copyright policy of the publisher.
- Full text
- Peer reviewed
