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Resonant Tunnelling in Barrier-in-Well and Well-in-Well Structures |
| YAO Jiang-Hong1, JIA Guo-Zhi2, ZHANG-Yan1, LI Wei-Wu1, SHU Yong-Chun1, WANG Zhan-Guo1, XU Jing-Jun1 |
| 1The Key Laboratory of Weak Light Nonlinear Photonics (Ministry of Education), Nankai University, Tianjin 3004572Tianjin Institute of Urban Construction, Tianjin 300384 |
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| Cite this article: |
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YAO Jiang-Hong, JIA Guo-Zhi, ZHANG-Yan et al 2008 Chin. Phys. Lett. 25 4391-4394 |
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Abstract A Schrödinger equation is solved numerically for a barrier in a quantum well and a quantum well in another well structure by the transfer matrix technique. Effect of structure parameters on the transmission probabilities is investigated in detail. The results suggest that symmetry plays an important role in the coupling effect between the quantum wells. The relationship between the width of the inner well and the resonant energy levels in well-in-well structures is also studied. It is found that the ground state energy and the second resonant energy decrease with increasing width of the inner well, while the first resonant energy remains constant.
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73.21.-b
78.67.De
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Received: 12 September 2008
Published: 27 November 2008
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| PACS: |
73.21.-b
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(Electron states and collective excitations in multilayers, quantum wells, mesoscopic, and nanoscale systems)
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78.67.De
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(Quantum wells)
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[1] Kiyoshi M and Hiroaki Y 1998 J. Appl. Phys. 84311
[2] Wang H M, Xu H Z and Zhang Y F 2006 Phys. Lett. A 355 481
[3] Guo Y, Gu B L, Yu J Z, Zeng Z and Kawazoe Y 1998 J.Appl. Phys. 84 918
[4] Gong J, Liang X X and Ban S L 2006 J. Appl. Phys. 100 23707
[5] Lin S D and Lee C P 2003 J. Appl. Phys. 932592
[6] Mi Z, Bhattacharya P and Fathpour S 2005 Appl. Phys.Lett. 86 153109
[7] Chan K S 2005 J. Appl. Phys. 97 16104
[8] Delgado F, Muga J G and Austing D G 2005 J. Appl.Phys. 97 13705 |
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