期刊
PHYSICA E-LOW-DIMENSIONAL SYSTEMS & NANOSTRUCTURES
卷 65, 期 -, 页码 93-99出版社
ELSEVIER SCIENCE BV
DOI: 10.1016/j.physe.2014.08.011
关键词
GaAs/Ga1-xAlxAs; V-groove quantum wire; Coordinate transformation; Finite difference method; Transition energy; Oscillator strengths
In this work we are particularly interested for GaAs/Ga1-xAlxAs V-groove quantum wires. The paper presents an efficient and simple method for energy spectra and wave function calculations of electrons and holes in V-groove quantum wires. The method is based on the coordinate transformation of the V-groove quantum wire structure and the computational domain using a function proposed by Inoshita. Then, the Hamiltonian followed by implementation of the FDM (Finite Difference Method) in the new computational space leads to an eigenvalues problem resolved using specialized LAPACK's routines. The influence of the parameters introduced in the mathematical function, is studied on the energy levels of electrons and holes as well as the oscillator strengths. (C) 2014 Elsevier B.V. All rights reserved.
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