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Öğe Effect of external fields on the energies of hydrogenic donor with the anharmonic confinement potential(ELSEVIER SCIENCE BV, 2015) Aciksoz, E.; Bayrak, O.; Soylu, A.The impurity binding energy in the GaAs-Ga1-x AlxAs system is studied with an anharmonic type confinement potential by taking into account the influence of the external electric and magnetic fields within the framework of the effective mass approximation and asymptotic iteration method (AIM). The influence of the external electromagnetic fields and anharmonicity on a donor binding energy is examined systematically. It is shown that the donor binding energy is highly dependent on the external electric and magnetic fields and the confinement potential shapes. Both the electric and magnetic fields are increased, the binding energies increase for each of them. However, the behaviors of increase in the weak and strong fields' regimes have different character a bit. Furthermore, when the more anharmonicity is considered, the binding energy of donor slightly increases as well. (C) 2014 Elsevier By. All rights reserved.
