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Spin magnetic moment current of impurity electron in a spherical quantum dot
Authors:S. M. Amirkhanyan  E. M. Kazaryan  H. A. Sarkisyan
Affiliation:1. Russian-Armenian (Slavonic) State University, Yerevan, Armenia
2. Yerevan State University, Yerevan, Armenia
Abstract:Current of the spin magnetic moment of an electron coupled with hydrogen-like impurity, placed in the center of a spherical quantum dot, is studied. Confinement potential of the quantum dot is approximated by rectangular infinitely high walls. S-states of electron for both positive and negative values of total energy are considered. Dependences of spin magnetic moment current of electron on the radial variable for different values of dot radius are obtained. It is shown that for quantum dots with large radius, due to weakening of size-quantization effect, corresponding curves approach each other.
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