期刊
PHYSICA E-LOW-DIMENSIONAL SYSTEMS & NANOSTRUCTURES
卷 15, 期 4, 页码 261-268出版社
ELSEVIER SCIENCE BV
DOI: 10.1016/S1386-9477(02)00572-6
关键词
quantum dots; confinement potential; finite-difference method
The problem of confinement potential profile in quantum dots has been studied. We have proposed a new class of the confinement potentials, called the power-exponential potentials, which are sufficiently flexible to approximate the realistic confinement potentials in the quantum dots. The one-electron energy spectra for the power-exponential potentials of the cylindrical symmetry have been calculated by the high-order finite-difference method. We have discussed the properties of the spectra and the applicability of the power-exponential potentials to the quantum dots. (C) 2002 Elsevier Science B.V. All rights reserved.
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