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Chin. Phys. B, 2012, Vol. 21(3): 037301    DOI: 10.1088/1674-1056/21/3/037301
CONDENSED MATTER: ELECTRONIC STRUCTURE, ELECTRICAL, MAGNETIC, AND OPTICAL PROPERTIES Prev   Next  

Topological structure effect on far-infrared spectra in a GaAs/InAs nanoring

Gu Li-Ying(谷利英)a), Li Yan-Fang(李艳芳)a)b)†, Chu Wei-Dong(楚卫东)b), and Wei Ying-Hui(卫英慧)a)
a. College of Materials Science and Engineering, Taiyuan University of Technology, Taiyuan 030024, China;
b. Institute of Applied Physics and Computational Mathematics, Beijing 100088, China
Abstract  On the basis of the growth mechanism of a GaAs/InAs nanoring, we propose a fine model which reflects the confinement details of real nanoring. Through calculations of the two-electron energy and far-infrared (FIR) spectra, we find that the ring topological structure and electron-electron interaction have great influence on the FIR spectra. The two unknown transition peaks in the experiment are determined theoretically. The theoretical results are in good agreement with the experiments.
Keywords:  nanoring      topological structure      far-infrared spectrum      confinement potential  
Received:  23 July 2011      Revised:  28 September 2011      Accepted manuscript online: 
PACS:  73.21.La (Quantum dots)  
  75.75.-c (Magnetic properties of nanostructures)  
  78.40.Fy (Semiconductors)  
Fund: Project supported by the National Natural Science Foundation of China (Grant No. 11074025), the National Basic Research Program of China (Grant No. 2011CB922200), and the China Academy of Engineering and Physics('909').
Corresponding Authors:  Li Yan-Fang,liyf1230@sohu.com     E-mail:  liyf1230@sohu.com

Cite this article: 

Gu Li-Ying(谷利英), Li Yan-Fang(李艳芳), Chu Wei-Dong(楚卫东), and Wei Ying-Hui(卫英慧) Topological structure effect on far-infrared spectra in a GaAs/InAs nanoring 2012 Chin. Phys. B 21 037301

[1] Lorke A and Luyken R J 1998 Physica B 256-258 424
[2] Lorke A, Luyken R J, and Fricke M 1999 Microelectronic Engineering 47 95
[3] Lorke A, Luyken R J, Govorov A O, Kotthaus J P, Garcia J M and Petroff P M 2000 Phys. Rev. Lett. 84 2223
[4] Warburton R J, Schäflein C, Haft D, Bickel F, Lorke A, Karrai K, Garcia J M, Schoenfeld W and Petroff P M 2000 Nature 405 926
[5] Kleemans N A J M, Bominaar-Silkens I M A, Fomin V M, Gladilin V N, Granados D, Taboada A G, García J M, Offermans P, Zeitler U, Christianen P C M, Maan J C, Devreese J T and Koenraad P M 2007 Phys. Rev. Lett. 99 146808
[6] Huang G, Guo W, Bhattacharya P, Ariyawansa G and Perera A G U 2009 Appl. Phys. Lett. 94 101115
[7] Emperador A, Pi M, Barranco M and Lorke A 2000 Phys. Rev. B 62 4573
[8] Song J and Ulloa S E 2001 Phys. Rev. B 63 125302
[9] Planelles J, Jask髄ski W and Aliaga J I 2001 Phys. Rev. B 65 033306 bibitem 10 Voskoboynikov O, Li Y, Lu H M, Shih C F and Lee C P 2002 Phys. Rev. B 66 155306 bibitem 11 Lee C W and Peter A J 2011 Chin. Phys. B 20 077104
[12] Lorke A, Luyken R J, Garcia J M and Petroff P M 2001 Jpn. J. Appl. Phys. 40 1857
[13] Zhu J L, Chu W D, Dai Z S and Xu D 2005 Phys. Rev. B 72 165346
[14] Hu H, Zhu J L and Xiong J J Phys. Rev. B 62 16777
[15] Maksym P A and Chakraborty T 1990 Phys. Rev. Lett. 65 108
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