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- W2359694768 abstract "Studied the binding energies of a hydrogenic-donor impurity in a cylindrically symmetric GaAs/GaAlAs-coupled quantum disk in the presence of a uniform magnetic field for different disk and barrier thicknesses,disk radii,and donor ion positions within the disk.The magnetic field was assumed to be applied parallel to the disk axis.The calculations were performed by using a variational procedure for finite confinement potentials within the effective-mass approximation.The calculated results showed that the binding energy depended on the interplay of the spatial confinement and magnetic field confinement:A high magnetic field significantly enhanced the binding energy in the case of weak spatial confinement.The binding energy of a hydrogenic-donor impurity in two coupled quantum disks was found to be smaller than that in a corresponding single quantum disk,due to the coupling effect between the disks.In the limits of coupled quantum wells,the results showed good agreement with those previously obtained for the case in which the donor ion was located at the center of the quantum disk." @default.
- W2359694768 created "2016-06-24" @default.
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- W2359694768 date "2008-01-01" @default.
- W2359694768 modified "2023-09-24" @default.
- W2359694768 title "Hydrogenic-donor Impurity States in Coupled Quantum Disks in the Presence of a Magnetic Field" @default.
- W2359694768 hasPublicationYear "2008" @default.
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