Aktas, S.Boz, F. K.Bilekkaya, A.Okan, S. E.2024-06-122024-06-1220091386-94771873-1759https://doi.org/10.1016/j.physe.2009.04.037https://hdl.handle.net/20.500.14551/24224The binding energy of a hydrogenic impurity in a coaxial square quantum well wire (QWW) system is investigated as a function of the barrier thickness for two different impurity positions under the electric fields. Within the effective mass approximation, the ground state energy in the presence of an external electric field applied perpendicular to the symmetry axis of the wire system is calculated using the finite difference method. Then, the ground state binding energy of a hydrogenic impurity is found employing a variational method. It is found that the binding energy in critical barrier thickness shows an increase or decrease depending on the impurity position and electric field strength. (C) 2009 Elsevier B.V. All rights reserved.en10.1016/j.physe.2009.04.037info:eu-repo/semantics/closedAccessThe Finite Difference MethodMultilayersImpurity LevelsShallow Donor ImpuritiesBinding-EnergyMagnetic-FieldHydrogenic ImpurityGround-StateFinitePolarizabilityConfinementExcitonSystemsArticle41815721576Q3WOS:0002683849000392-s2.0-67649207606Q2