Energy Spectra of a Magnetic Quantum Ring with an Off-Center Impurity |
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| Authors: | LEE Chak-Man LI Jun-Qin RUAN Wen-Ying Richard LEE Chak-Hong |
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| Institution: | 1. Department of Material Science and Engineering, Shenzhen University, Shenzhen 518060, China
;2. Department of Electrical and Computer Engineering,
University of Illinois at Urbana-Champaign, Urbana, IL61801, USA
;3. Department of Applied Physics, South China University of Technology, Guangzhou 510641, China |
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| Abstract: | In this paper, we calculate the low-lying spectra of a single-electron magnetic quantum ring with an offcenter Coulomb impurity, where the magnetic field is zero within the ring and constant elsewhere. The impurity, either an acceptor or a donor, is located at a distance d as measured from the plane of the ring along the vertical z direction.The magnetic moments are found in order to get visible discontinuities at the points of the ground-state orbital angular momentum L transitions induced by magnetic fields. |
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| Keywords: | magnetic quantum ring Meissner effect magnetic moment |
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