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4篇 您的检索式:作者名="F.M.Peeters"
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1查看详情显示文摘K.Chang J.B.Xia F.M.Peeters 0,,16:1
2查看详情显示文摘Z.M.Ao A.D.Nernández-Nieves F.M.Peeters 8.Li 0,,23:1
3查看详情显示文摘Z.Z.Zhang K.Chang F.M.Peeters 0,,23:1
4On Improving Accuracy of Finite-Element Solutions of the Effective-Mass Schr¨odinger Equation for Interdiffused Quantum Wells and Quantum Wires显示文摘We use the Galerkin approach and the finite-element method to numerically solve the effective-mass Schr¨odinger equation.The accuracy of the solution is explored as it varies with the range of the numerical domain.The model potentials are those of interdiffused semiconductor quantum wells and axially symmetric quantum wires.Also,the model of a linear harmonic oscillator is considered for comparison reasons.It is demonstrated that the absolute error of the electron ground state energy level exhibits a minimum at a certain domain range,which is thus considered to be optimal.This range is found to depend on the number of mesh nodes N approximately as α_0 log_e^(α1)(α_2N),where the values of the constants α_0,α_1,and α_2are determined by fitting the numerical data.And the optimal range is found to be a weak function of the diffusion length.Moreover,it was demonstrated that a domain range adaptation to the optimal value leads to substantial improvement of accuracy of the solution of the Schr¨odinger equation.D.B.Topalovi V.V.Arsoski S.Pavlovic N.A.Cukaric M.Z.Tadic F.M.Peeters 2016Communications in Theoretical Physics2016,65,1:0
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