Pan Hui and Zhu Jia-Lin 2003 J. Phys.: Condens. Matter 15 7287 doi:10.1088/0953-8984/15/43/012
Pan Hui and Zhu Jia-Lin1
Show affiliationsThe effects of a positively charged impurity on the energy levels and far-infrared spectra of one and two electrons in semiconductor nanorings under magnetic fields are studied. The effects of the nanoring size and the impurity position are also discussed. It is shown that the electron–electron interaction and electron–impurity one in nanorings are strongly dependent on the nanoring size and the impurity position. Based on the studies of the impurity and field effects, the impurity-induced Aharonov–Bohm oscillations of the far-infrared spectra are found. The results predict a possibility of observing phenomena related to electron–impurity interaction in a nanoring in the future.
61.72.S- Impurities in crystals
78.30.-j Infrared and Raman spectra
81.07.-b Nanoscale materials and structures: fabrication and characterization
Condensed matter: electrical, magnetic and optical
Issue 43 (5 November 2003)
Received 31 July 2003, in final form 18 September 2003
Published 17 October 2003
Pan Hui and Zhu Jia-Lin 2003 J. Phys.: Condens. Matter 15 7287
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