THE GROUND STATE OF QUANTUM RINGS IN A MAGNETIC FIELD
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The ground state of semiconductor quantum rings (QRs) in the presence of an external magnetic field B is theoretically analyzed. By numerically diagonalizing the effective-mass Hamiltonian of the QRs, the energy and wavefunction of the ground state are obtained. It is found that the energy oscillates as B increases. The evolution of the angular momentum L0 and the spin S0 of the ground state in accord with B is revealed. We depict the geometric configuration of the ground state via density functions. Based on an analysis of the wavefunction, it is shown that each configuration is accessible only to a specific group of states having specific L0 and S0.
1991 ◽
Vol 06
(30)
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pp. 2819-2826
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2013 ◽
Vol 483
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pp. 170-173
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1991 ◽
Vol 05
(10)
◽
pp. 1675-1684
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2008 ◽
Vol 22
(12)
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pp. 1923-1932
2007 ◽
Vol 21
(31)
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pp. 5265-5274
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