Simple trial function for shallow donor D0 states in GaAs-Ga1xAlxAs quantum-well structures

F. J. Betancur and I. D. Mikhailov
Phys. Rev. B 51, 4982 – Published 15 February 1995; Erratum Phys. Rev. B 53, 7555 (1996)
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Abstract

A three-nonlinear-parameters trial variational function is proposed for the ground and first excited states of a hydrogenic donor at the center and off center in the GaAs quantum well in a magnetic field. Binding energies are in very good agreement with recent effective-mass calculations for the intermediate-width well and there are more accurate results in narrow wells approximating asymptotically to exact ones (L→0). Results are improved for ground and low-lying excited states, with or without an applied magnetic field in all cases, as the barrier well approaches the impurity center.

  • Received 4 August 1994

DOI:https://doi.org/10.1103/PhysRevB.51.4982

©1995 American Physical Society

Erratum

Authors & Affiliations

F. J. Betancur and I. D. Mikhailov

  • Department of Physics, Industrial University of Santander, Box Aerial 678 Bucaramanga, Colombia

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Issue

Vol. 51, Iss. 8 — 15 February 1995

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