期刊
PHYSICS LETTERS A
卷 323, 期 1-2, 页码 132-137出版社
ELSEVIER SCIENCE BV
DOI: 10.1016/j.physleta.2004.01.007
关键词
exciton; quantum dot; energy spectrum
We explore an exciton quantum dot in a Gaussian confining potential and an external magnetic field. By means of numerical matrix diagonalization within the effective-mass approximation we obtain the energy spectrum and show that the property of low-lying states of the quantum dot is rather sensitive to the magnetic field and the strength of the confinement potential as well. The dependence of energy spectrum of the low-lying states on the magnetic field and the size of the confining potential is analyzed explicitly. (C) 2004 Elsevier B.V. All rights reserved.
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